686064332 has 36 divisors (see below), whose sum is σ = 1269533160. Its totient is φ = 324341952.

The previous prime is 686064319. The next prime is 686064343. The reversal of 686064332 is 233460686.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 186503 + ... + 190145.

It is an arithmetic number, because the mean of its divisors is an integer number (35264810).

Almost surely, 2^686064332 is an apocalyptic number.

It is an amenable number.

686064332 is a deficient number, since it is larger than the sum of its proper divisors (583468828).

686064332 is a wasteful number, since it uses less digits than its factorization.

686064332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3782 (or 3757 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 38.

The square root of 686064332 is about 26192.8297822133. The cubic root of 686064332 is about 881.9723031942.

The spelling of 686064332 in words is "six hundred eighty-six million, sixty-four thousand, three hundred thirty-two".