977696394 has 16 divisors (see below), whose sum is σ = 1974378432. Its totient is φ = 322734528.

The previous prime is 977696329. The next prime is 977696411. The reversal of 977696394 is 493696779.

977696394 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 790399 + ... + 791634.

It is an arithmetic number, because the mean of its divisors is an integer number (123398652).

Almost surely, 2^977696394 is an apocalyptic number.

977696394 is an abundant number, since it is smaller than the sum of its proper divisors (996682038).

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

977696394 is a wasteful number, since it uses less digits than its factorization.

977696394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1582141.

The product of its digits is 15431472, while the sum is 60.

The square root of 977696394 is about 31268.1370407640. The cubic root of 977696394 is about 992.5094971248.

The spelling of 977696394 in words is "nine hundred seventy-seven million, six hundred ninety-six thousand, three hundred ninety-four".