977650080 has 96 divisors (see below), whose sum is σ = 3359579328. Its totient is φ = 237004800.

The previous prime is 977650057. The next prime is 977650081. The reversal of 977650080 is 80056779.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (977650081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87301 + ... + 97860.

It is an arithmetic number, because the mean of its divisors is an integer number (34995618).

Almost surely, 2^977650080 is an apocalyptic number.

It is an amenable number.

977650080 is an abundant number, since it is smaller than the sum of its proper divisors (2381929248).

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

977650080 is a wasteful number, since it uses less digits than its factorization.

977650080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185190 (or 185182 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 42.

The square root of 977650080 is about 31267.3964378232. The cubic root of 977650080 is about 992.4938249758.

The spelling of 977650080 in words is "nine hundred seventy-seven million, six hundred fifty thousand, eighty".