977343864 has 64 divisors (see below), whose sum is σ = 2795001600. Its totient is φ = 278982144.

The previous prime is 977343827. The next prime is 977343881. The reversal of 977343864 is 468343779.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 248199 + ... + 252105.

It is an arithmetic number, because the mean of its divisors is an integer number (43671900).

Almost surely, 2^977343864 is an apocalyptic number.

It is an amenable number.

977343864 is an abundant number, since it is smaller than the sum of its proper divisors (1817657736).

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

977343864 is a wasteful number, since it uses less digits than its factorization.

977343864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5412 (or 5408 counting only the distinct ones).

The product of its digits is 3048192, while the sum is 51.

The square root of 977343864 is about 31262.4993242703. The cubic root of 977343864 is about 992.3901923873.

The spelling of 977343864 in words is "nine hundred seventy-seven million, three hundred forty-three thousand, eight hundred sixty-four".