870879 has 12 divisors (see below), whose sum is σ = 1196376. Its totient is φ = 563472.

The previous prime is 870871. The next prime is 870889. The reversal of 870879 is 978078.

It is not a de Polignac number, because 870879 - 2³ = 870871 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (870871) 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 11 ways as a sum of consecutive naturals, for example, 5469 + ... + 5625.

It is an arithmetic number, because the mean of its divisors is an integer number (99698).

2⁸⁷⁰⁸⁷⁹ is an apocalyptic number.

870879 is a deficient number, since it is larger than the sum of its proper divisors (325497).

870879 is a wasteful number, since it uses less digits than its factorization.

870879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246 (or 203 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 39.

The square root of 870879 is about 933.2089798111. The cubic root of 870879 is about 95.4961668006.

The spelling of 870879 in words is "eight hundred seventy thousand, eight hundred seventy-nine".