870522 has 16 divisors (see below), whose sum is σ = 1801440. Its totient is φ = 280112.

The previous prime is 870517. The next prime is 870533. The reversal of 870522 is 225078.

870522 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 870492 and 870501.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2328 + ... + 2675.

It is an arithmetic number, because the mean of its divisors is an integer number (112590).

2⁸⁷⁰⁵²² is an apocalyptic number.

870522 is an abundant number, since it is smaller than the sum of its proper divisors (930918).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

870522 is a wasteful number, since it uses less digits than its factorization.

870522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5037.

The product of its (nonzero) digits is 1120, while the sum is 24.

The square root of 870522 is about 933.0176847199. The cubic root of 870522 is about 95.4831160817.

The spelling of 870522 in words is "eight hundred seventy thousand, five hundred twenty-two".