977339538 has 48 divisors (see below), whose sum is σ = 2422944576. Its totient is φ = 278909280.

The previous prime is 977339513. The next prime is 977339567. The reversal of 977339538 is 835933779.

It is a happy number.

977339538 is a `hidden beast` number, since 9 + 7 + 73 + 39 + 538 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 114445 + ... + 122687.

It is an arithmetic number, because the mean of its divisors is an integer number (50478012).

Almost surely, 2^977339538 is an apocalyptic number.

977339538 is an abundant number, since it is smaller than the sum of its proper divisors (1445605038).

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

977339538 is a wasteful number, since it uses less digits than its factorization.

977339538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9199 (or 9196 counting only the distinct ones).

The product of its digits is 4286520, while the sum is 54.

The square root of 977339538 is about 31262.4301358676. The cubic root of 977339538 is about 992.3887281854.

The spelling of 977339538 in words is "nine hundred seventy-seven million, three hundred thirty-nine thousand, five hundred thirty-eight".