870602913 has 12 divisors (see below), whose sum is σ = 1261833300. Its totient is φ = 578419296.

The previous prime is 870602903. The next prime is 870602917. The reversal of 870602913 is 319206078.

It can be written as a sum of positive squares in 2 ways, for example, as 713050209 + 157552704 = 26703^2 + 12552^2 .

It is not a de Polignac number, because 870602913 - 2¹⁰ = 870601889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (870602917) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 162438 + ... + 167711.

It is an arithmetic number, because the mean of its divisors is an integer number (105152775).

Almost surely, 2^870602913 is an apocalyptic number.

It is an amenable number.

870602913 is a deficient number, since it is larger than the sum of its proper divisors (391230387).

870602913 is a wasteful number, since it uses less digits than its factorization.

870602913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330448 (or 330445 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 870602913 is about 29505.9809699661. The cubic root of 870602913 is about 954.8607430144.

The spelling of 870602913 in words is "eight hundred seventy million, six hundred two thousand, nine hundred thirteen".