977635056 has 80 divisors (see below), whose sum is σ = 2674900224. Its totient is φ = 307034112.

The previous prime is 977635027. The next prime is 977635069. The reversal of 977635056 is 650536779.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 977634996 and 977635014.

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, 67360 + ... + 80576.

Almost surely, 2^977635056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 977635056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1337450112).

977635056 is an abundant number, since it is smaller than the sum of its proper divisors (1697265168).

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

977635056 is a wasteful number, since it uses less digits than its factorization.

977635056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13318 (or 13312 counting only the distinct ones).

The product of its (nonzero) digits is 1190700, while the sum is 48.

The square root of 977635056 is about 31267.1561866442. The cubic root of 977635056 is about 992.4887409129.

The spelling of 977635056 in words is "nine hundred seventy-seven million, six hundred thirty-five thousand, fifty-six".