685004875 has 16 divisors (see below), whose sum is σ = 856477440. Its totient is φ = 546984000.

The previous prime is 685004867. The next prime is 685004909. The reversal of 685004875 is 578400586.

It is not a de Polignac number, because 685004875 - 2³ = 685004867 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66310 + ... + 75940.

It is an arithmetic number, because the mean of its divisors is an integer number (53529840).

Almost surely, 2^685004875 is an apocalyptic number.

685004875 is a deficient number, since it is larger than the sum of its proper divisors (171472565).

685004875 is an equidigital number, since it uses as much as digits as its factorization.

685004875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10215 (or 10205 counting only the distinct ones).

The product of its (nonzero) digits is 268800, while the sum is 43.

The square root of 685004875 is about 26172.5977885268. The cubic root of 685004875 is about 881.5180731319.

The spelling of 685004875 in words is "six hundred eighty-five million, four thousand, eight hundred seventy-five".