68980928 has 14 divisors (see below), whose sum is σ = 136884156. Its totient is φ = 34490432.

The previous prime is 68980889. The next prime is 68980943. The reversal of 68980928 is 82908986.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 538850 + ... + 538977.

Almost surely, 2^68980928 is an apocalyptic number.

It is an amenable number.

68980928 is a deficient number, since it is larger than the sum of its proper divisors (67903228).

68980928 is a wasteful number, since it uses less digits than its factorization.

68980928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1077839 (or 1077829 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 50.

The square root of 68980928 is about 8305.4757840837. The cubic root of 68980928 is about 410.1187996012.

The spelling of 68980928 in words is "sixty-eight million, nine hundred eighty thousand, nine hundred twenty-eight".