312947982 has 32 divisors (see below), whose sum is σ = 725679360. Its totient is φ = 99780120.

The previous prime is 312947933. The next prime is 312948001. The reversal of 312947982 is 289749213.

312947982 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 124744 + ... + 127227.

It is an arithmetic number, because the mean of its divisors is an integer number (22677480).

Almost surely, 2^312947982 is an apocalyptic number.

312947982 is an abundant number, since it is smaller than the sum of its proper divisors (412731378).

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

312947982 is a wasteful number, since it uses less digits than its factorization.

312947982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252005 (or 251999 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 312947982 is about 17690.3358362695. The cubic root of 312947982 is about 678.9285187161.

The spelling of 312947982 in words is "three hundred twelve million, nine hundred forty-seven thousand, nine hundred eighty-two".