870991204 has 12 divisors (see below), whose sum is σ = 1524445804. Its totient is φ = 435435264.

The previous prime is 870991183. The next prime is 870991207. The reversal of 870991204 is 402199078.

870991204 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 515744100 + 355247104 = 22710^2 + 18848^2 .

It is a hoax number, since the sum of its digits (40) 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 (870991207) 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, 38704 + ... + 56920.

Almost surely, 2^870991204 is an apocalyptic number.

It is an amenable number.

870991204 is a deficient number, since it is larger than the sum of its proper divisors (653454600).

870991204 is a wasteful number, since it uses less digits than its factorization.

870991204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30174 (or 30172 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 40.

The square root of 870991204 is about 29512.5601058261. The cubic root of 870991204 is about 955.0026786471.

The spelling of 870991204 in words is "eight hundred seventy million, nine hundred ninety-one thousand, two hundred four".