870492172 has 24 divisors (see below), whose sum is σ = 1700500032. Its totient is φ = 386475600.

The previous prime is 870492151. The next prime is 870492317. The reversal of 870492172 is 271294078.

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 7 ways as a sum of consecutive naturals, for example, 228154 + ... + 231937.

It is an arithmetic number, because the mean of its divisors is an integer number (70854168).

Almost surely, 2^870492172 is an apocalyptic number.

It is an amenable number.

870492172 is a deficient number, since it is larger than the sum of its proper divisors (830007860).

870492172 is a wasteful number, since it uses less digits than its factorization.

870492172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 460149 (or 460147 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 40.

The square root of 870492172 is about 29504.1043246529. The cubic root of 870492172 is about 954.8202550890.

The spelling of 870492172 in words is "eight hundred seventy million, four hundred ninety-two thousand, one hundred seventy-two".