857512804 has 12 divisors (see below), whose sum is σ = 1501889004. Its totient is φ = 428401664.

The previous prime is 857512787. The next prime is 857512813. The reversal of 857512804 is 408215758.

857512804 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 131102500 + 726410304 = 11450^2 + 26952^2 .

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, 83209 + ... + 92944.

It is an arithmetic number, because the mean of its divisors is an integer number (125157417).

Almost surely, 2^857512804 is an apocalyptic number.

It is an amenable number.

857512804 is a deficient number, since it is larger than the sum of its proper divisors (644376200).

857512804 is a wasteful number, since it uses less digits than its factorization.

857512804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177374 (or 177372 counting only the distinct ones).

The product of its (nonzero) digits is 89600, while the sum is 40.

The square root of 857512804 is about 29283.3195522639. The cubic root of 857512804 is about 950.0508944110.

The spelling of 857512804 in words is "eight hundred fifty-seven million, five hundred twelve thousand, eight hundred four".