977495868 has 36 divisors (see below), whose sum is σ = 2493571080. Its totient is φ = 322841376.

The previous prime is 977495861. The next prime is 977495879. The reversal of 977495868 is 868594779.

977495868 is a `hidden beast` number, since 9 + 7 + 7 + 49 + 586 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (977495861) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 120630 + ... + 128477.

Almost surely, 2^977495868 is an apocalyptic number.

It is an amenable number.

977495868 is an abundant number, since it is smaller than the sum of its proper divisors (1516075212).

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

977495868 is a wasteful number, since it uses less digits than its factorization.

977495868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249226 (or 249221 counting only the distinct ones).

The product of its digits is 30481920, while the sum is 63.

The square root of 977495868 is about 31264.9303213681. The cubic root of 977495868 is about 992.4416377604.

The spelling of 977495868 in words is "nine hundred seventy-seven million, four hundred ninety-five thousand, eight hundred sixty-eight".