977057688 has 64 divisors (see below), whose sum is σ = 2483712000. Its totient is φ = 320257152.

The previous prime is 977057681. The next prime is 977057693. The reversal of 977057688 is 886750779.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (977057681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 362281 + ... + 364967.

It is an arithmetic number, because the mean of its divisors is an integer number (38808000).

Almost surely, 2^977057688 is an apocalyptic number.

It is an amenable number.

977057688 is an abundant number, since it is smaller than the sum of its proper divisors (1506654312).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

977057688 is a wasteful number, since it uses less digits than its factorization.

977057688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2944 (or 2940 counting only the distinct ones).

The product of its (nonzero) digits is 5927040, while the sum is 57.

The square root of 977057688 is about 31257.9220038697. The cubic root of 977057688 is about 992.2933223604.

The spelling of 977057688 in words is "nine hundred seventy-seven million, fifty-seven thousand, six hundred eighty-eight".