684795688 has 16 divisors (see below), whose sum is σ = 1293795360. Its totient is φ = 339783600.

The previous prime is 684795679. The next prime is 684795689. The reversal of 684795688 is 886597486.

It is not an unprimeable number, because it can be changed into a prime (684795689) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 325668 + ... + 327763.

It is an arithmetic number, because the mean of its divisors is an integer number (80862210).

Almost surely, 2^684795688 is an apocalyptic number.

It is an amenable number.

684795688 is a deficient number, since it is larger than the sum of its proper divisors (608999672).

684795688 is a wasteful number, since it uses less digits than its factorization.

684795688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 653568 (or 653564 counting only the distinct ones).

The product of its digits is 23224320, while the sum is 61.

The square root of 684795688 is about 26168.6011853901. The cubic root of 684795688 is about 881.4283312424.

The spelling of 684795688 in words is "six hundred eighty-four million, seven hundred ninety-five thousand, six hundred eighty-eight".