870331 has 16 divisors (see below), whose sum is σ = 1105920. Its totient is φ = 665280.

The previous prime is 870329. The next prime is 870341. The reversal of 870331 is 133078.

It is not a de Polignac number, because 870331 - 2¹ = 870329 is a prime.

It is a super-2 number, since 2×870331² = 1514952099122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (870301) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 6790 + ... + 6916.

It is an arithmetic number, because the mean of its divisors is an integer number (69120).

2⁸⁷⁰³³¹ is an apocalyptic number.

870331 is a deficient number, since it is larger than the sum of its proper divisors (235589).

870331 is a wasteful number, since it uses less digits than its factorization.

870331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 870331 is about 932.9153230599. The cubic root of 870331 is about 95.4761322991.

The spelling of 870331 in words is "eight hundred seventy thousand, three hundred thirty-one".