977689330 has 16 divisors (see below), whose sum is σ = 1768777560. Its totient is φ = 389089792.

The previous prime is 977689301. The next prime is 977689337. The reversal of 977689330 is 33986779.

977689330 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 916333441 + 61355889 = 30271^2 + 7833^2 .

It is not an unprimeable number, because it can be changed into a prime (977689337) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 246175 + ... + 250114.

Almost surely, 2^977689330 is an apocalyptic number.

977689330 is a deficient number, since it is larger than the sum of its proper divisors (791088230).

977689330 is a wasteful number, since it uses less digits than its factorization.

977689330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 496493.

The product of its (nonzero) digits is 1714608, while the sum is 52.

The square root of 977689330 is about 31268.0240821194. The cubic root of 977689330 is about 992.5071067768.

The spelling of 977689330 in words is "nine hundred seventy-seven million, six hundred eighty-nine thousand, three hundred thirty".