977921232 has 40 divisors (see below), whose sum is σ = 2573969184. Its totient is φ = 319822464.

The previous prime is 977921227. The next prime is 977921233. The reversal of 977921232 is 232129779.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (977921233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 189658 + ... + 194745.

Almost surely, 2^977921232 is an apocalyptic number.

It is an amenable number.

977921232 is an abundant number, since it is smaller than the sum of its proper divisors (1596047952).

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

977921232 is a wasteful number, since it uses less digits than its factorization.

977921232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384467 (or 384461 counting only the distinct ones).

The product of its digits is 95256, while the sum is 42.

The square root of 977921232 is about 31271.7321554147. The cubic root of 977921232 is about 992.5855728022.

The spelling of 977921232 in words is "nine hundred seventy-seven million, nine hundred twenty-one thousand, two hundred thirty-two".