<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED
FROM THE ANNUAL REPORT OF AMERICAN CENTURY MUTUAL FUNDS, INC.
AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH REPORT.
</LEGEND>
<CIK> 0000100334
<NAME> AMERICAN CENTURY MUTUAL FUNDS, INC.
<SERIES>
<NUMBER> 43
<NAME> VISTA FUND - ADVISOR CLASS
<MULTIPLIER> 1000
<S> <C>
<PERIOD-TYPE> YEAR
<FISCAL-YEAR-END> OCT-31-2000
<PERIOD-END> OCT-31-2000
<INVESTMENTS-AT-COST> 1,912,287
<INVESTMENTS-AT-VALUE> 2,470,251
<RECEIVABLES> 48,969
<ASSETS-OTHER> 0
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 2,519,220
<PAYABLE-FOR-SECURITIES> 87,792
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 8,063
<TOTAL-LIABILITIES> 95,855
<SENIOR-EQUITY> 9
<PAID-IN-CAPITAL-COMMON> 1,251,101
<SHARES-COMMON-STOCK> 911
<SHARES-COMMON-PRIOR> 756
<ACCUMULATED-NII-CURRENT> (14,466)
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 628,758
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 557,963
<NET-ASSETS> 2,423,365
<DIVIDEND-INCOME> 1,722
<INTEREST-INCOME> 5,958
<OTHER-INCOME> 0
<EXPENSES-NET> 22,146
<NET-INVESTMENT-INCOME> (14,466)
<REALIZED-GAINS-CURRENT> 630,007
<APPREC-INCREASE-CURRENT> 131,872
<NET-CHANGE-FROM-OPS> 747,413
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 0
<DISTRIBUTIONS-OF-GAINS> (464)
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 1,240
<NUMBER-OF-SHARES-REDEEMED> (861)
<SHARES-REINVESTED> 25
<NET-CHANGE-IN-ASSETS> 1,269,411
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 71,448
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 22,050
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 22,146
<AVERAGE-NET-ASSETS> 17,160
<PER-SHARE-NAV-BEGIN> 15.31
<PER-SHARE-NII> (0.22)
<PER-SHARE-GAIN-APPREC> 10.05
<PER-SHARE-DIVIDEND> 0.00
<PER-SHARE-DISTRIBUTIONS> (0.90)
<RETURNS-OF-CAPITAL> 0.00
<PER-SHARE-NAV-END> 24.24
<EXPENSE-RATIO> 1.25
</TABLE>
