685328356 has 12 divisors (see below), whose sum is σ = 1231739068. Its totient is φ = 333402912.

The previous prime is 685328353. The next prime is 685328381. The reversal of 685328356 is 653823586.

685328356 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 646888356 + 38440000 = 25434^2 + 6200^2 .

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (685328353) 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, 2315151 + ... + 2315446.

Almost surely, 2^685328356 is an apocalyptic number.

It is an amenable number.

685328356 is a deficient number, since it is larger than the sum of its proper divisors (546410712).

685328356 is a wasteful number, since it uses less digits than its factorization.

685328356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4630638 (or 4630636 counting only the distinct ones).

The product of its digits is 1036800, while the sum is 46.

The square root of 685328356 is about 26178.7768239847. The cubic root of 685328356 is about 881.6568115476.

The spelling of 685328356 in words is "six hundred eighty-five million, three hundred twenty-eight thousand, three hundred fifty-six".