686773604 has 12 divisors (see below), whose sum is σ = 1311113328. Its totient is φ = 312169800.

The previous prime is 686773589. The next prime is 686773627. The reversal of 686773604 is 406377686.

It is a super-2 number, since 2×686773604² = 943315966302297632, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7804202 + ... + 7804289.

It is an arithmetic number, because the mean of its divisors is an integer number (109259444).

Almost surely, 2^686773604 is an apocalyptic number.

It is an amenable number.

686773604 is a deficient number, since it is larger than the sum of its proper divisors (624339724).

686773604 is a wasteful number, since it uses less digits than its factorization.

686773604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15608506 (or 15608504 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 47.

The square root of 686773604 is about 26206.3657152227. The cubic root of 686773604 is about 882.2761341816.

The spelling of 686773604 in words is "six hundred eighty-six million, seven hundred seventy-three thousand, six hundred four".