870939 has 8 divisors (see below), whose sum is σ = 1290320. Its totient is φ = 580608.

The previous prime is 870931. The next prime is 870953. The reversal of 870939 is 939078.

870939 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 870939 - 2³ = 870931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (870931) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16102 + ... + 16155.

It is an arithmetic number, because the mean of its divisors is an integer number (161290).

2⁸⁷⁰⁹³⁹ is an apocalyptic number.

870939 is a deficient number, since it is larger than the sum of its proper divisors (419381).

870939 is a wasteful number, since it uses less digits than its factorization.

870939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32266 (or 32260 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 870939 is about 933.2411263977. The cubic root of 870939 is about 95.4983598487.

The spelling of 870939 in words is "eight hundred seventy thousand, nine hundred thirty-nine".