684795204 has 36 divisors (see below), whose sum is σ = 1731895984. Its totient is φ = 228148272.

The previous prime is 684795203. The next prime is 684795229. The reversal of 684795204 is 402597486.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 684795204.

It is not an unprimeable number, because it can be changed into a prime (684795203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 93939 + ... + 100965.

Almost surely, 2^684795204 is an apocalyptic number.

It is an amenable number.

684795204 is an abundant number, since it is smaller than the sum of its proper divisors (1047100780).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

684795204 is a wasteful number, since it uses less digits than its factorization.

684795204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9744 (or 9739 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The square root of 684795204 is about 26168.5919376645. The cubic root of 684795204 is about 881.4281235837.

The spelling of 684795204 in words is "six hundred eighty-four million, seven hundred ninety-five thousand, two hundred four".