686682032 has 40 divisors (see below), whose sum is σ = 1372358592. Its totient is φ = 332672000.

The previous prime is 686681993. The next prime is 686682077. The reversal of 686682032 is 230286686.

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, 71432 + ... + 80472.

Almost surely, 2^686682032 is an apocalyptic number.

It is an amenable number.

686682032 is a deficient number, since it is larger than the sum of its proper divisors (685676560).

686682032 is a wasteful number, since it uses less digits than its factorization.

686682032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9197 (or 9191 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 41.

The square root of 686682032 is about 26204.6185242220. The cubic root of 686682032 is about 882.2369192298.

The spelling of 686682032 in words is "six hundred eighty-six million, six hundred eighty-two thousand, thirty-two".