977630312 has 16 divisors (see below), whose sum is σ = 1841064900. Its totient is φ = 486679680.

The previous prime is 977630287. The next prime is 977630333. The reversal of 977630312 is 213036779.

It can be written as a sum of positive squares in 2 ways, for example, as 841348036 + 136282276 = 29006^2 + 11674^2 .

It is a super-2 number, since 2×977630312² = 1911522053882434688, which contains 22 as substring.

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, 264989 + ... + 268652.

Almost surely, 2^977630312 is an apocalyptic number.

It is an amenable number.

977630312 is a deficient number, since it is larger than the sum of its proper divisors (863434588).

977630312 is a wasteful number, since it uses less digits than its factorization.

977630312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 533876 (or 533872 counting only the distinct ones).

The product of its (nonzero) digits is 47628, while the sum is 38.

The square root of 977630312 is about 31267.0803242004. The cubic root of 977630312 is about 992.4871355510.

The spelling of 977630312 in words is "nine hundred seventy-seven million, six hundred thirty thousand, three hundred twelve".