977458864 has 20 divisors (see below), whose sum is σ = 1895196160. Its totient is φ = 488376000.

The previous prime is 977458847. The next prime is 977458871. The reversal of 977458864 is 468854779.

It is a junction number, because it is equal to n+sod(n) for n = 977458799 and 977458808.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1489 + ... + 44239.

It is an arithmetic number, because the mean of its divisors is an integer number (94759808).

Almost surely, 2^977458864 is an apocalyptic number.

It is an amenable number.

977458864 is a deficient number, since it is larger than the sum of its proper divisors (917737296).

977458864 is a wasteful number, since it uses less digits than its factorization.

977458864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44188 (or 44182 counting only the distinct ones).

The product of its digits is 13547520, while the sum is 58.

The square root of 977458864 is about 31264.3385345029. The cubic root of 977458864 is about 992.4291143405.

The spelling of 977458864 in words is "nine hundred seventy-seven million, four hundred fifty-eight thousand, eight hundred sixty-four".