978

978 = 2 x 3 x 163.

978 = 2⁴ + 3⁴ + 4⁴ + 5⁴.

The sum of the digits of 978 equals the number of digits times 8 (A061425).

978 is the least sum of four nonzero squares in exactly 45 ways (A025416).

978 is the sum of ten positive fifth powers (A003355).

978 is the number of ways to place a six nonattacking kings on a 5 x 5 chessboard (A172158).

Source: What's Special About This Number?