977697432 has 64 divisors (see below), whose sum is σ = 2833920000. Its totient is φ = 311728032.

The previous prime is 977697403. The next prime is 977697451. The reversal of 977697432 is 234796779.

977697432 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 93432 + ... + 103367.

It is an arithmetic number, because the mean of its divisors is an integer number (44280000).

Almost surely, 2^977697432 is an apocalyptic number.

977697432 is a gapful number since it is divisible by the number (92) formed by its first and last digit.

It is an amenable number.

977697432 is an abundant number, since it is smaller than the sum of its proper divisors (1856222568).

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

977697432 is a wasteful number, since it uses less digits than its factorization.

977697432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196837 (or 196827 counting only the distinct ones).

The product of its digits is 4000752, while the sum is 54.

The square root of 977697432 is about 31268.1536391262. The cubic root of 977697432 is about 992.5098483669.

The spelling of 977697432 in words is "nine hundred seventy-seven million, six hundred ninety-seven thousand, four hundred thirty-two".