977663532 has 24 divisors (see below), whose sum is σ = 2336855472. Its totient is φ = 317939200.

The previous prime is 977663527. The next prime is 977663551. The reversal of 977663532 is 235366779.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 993069 + ... + 994052.

It is an arithmetic number, because the mean of its divisors is an integer number (97368978).

Almost surely, 2^977663532 is an apocalyptic number.

It is an amenable number.

977663532 is an abundant number, since it is smaller than the sum of its proper divisors (1359191940).

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

977663532 is a wasteful number, since it uses less digits than its factorization.

977663532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1987169 (or 1987167 counting only the distinct ones).

The product of its digits is 1428840, while the sum is 48.

The square root of 977663532 is about 31267.6115493333. The cubic root of 977663532 is about 992.4983770359.

The spelling of 977663532 in words is "nine hundred seventy-seven million, six hundred sixty-three thousand, five hundred thirty-two".