690856364 has 24 divisors (see below), whose sum is σ = 1319951808. Its totient is φ = 313777040.

The previous prime is 690856303. The next prime is 690856381. The reversal of 690856364 is 463658096.

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, 57287 + ... + 68289.

It is an arithmetic number, because the mean of its divisors is an integer number (54997992).

Almost surely, 2^690856364 is an apocalyptic number.

It is an amenable number.

690856364 is a deficient number, since it is larger than the sum of its proper divisors (629095444).

690856364 is a wasteful number, since it uses less digits than its factorization.

690856364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12445 (or 12443 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 47.

The square root of 690856364 is about 26284.1466287190. The cubic root of 690856364 is about 884.0210115601.

The spelling of 690856364 in words is "six hundred ninety million, eight hundred fifty-six thousand, three hundred sixty-four".