977043312 has 480 divisors, whose sum is σ = 3598912512. Its totient is φ = 240869376.

The previous prime is 977043281. The next prime is 977043359. The reversal of 977043312 is 213340779.

It is a super-2 number, since 2×977043312² = 1909227267047858688, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 14582703 + ... + 14582769.

Almost surely, 2^977043312 is an apocalyptic number.

977043312 is a gapful number since it is divisible by the number (92) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 977043312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1799456256).

977043312 is an abundant number, since it is smaller than the sum of its proper divisors (2621869200).

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

977043312 is a wasteful number, since it uses less digits than its factorization.

977043312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165 (or 156 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 36.

The square root of 977043312 is about 31257.6920453190. The cubic root of 977043312 is about 992.2884556130.

The spelling of 977043312 in words is "nine hundred seventy-seven million, forty-three thousand, three hundred twelve".