870504 has 64 divisors (see below), whose sum is σ = 2419200. Its totient is φ = 259776.

The previous prime is 870497. The next prime is 870517. The reversal of 870504 is 405078.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10447 + ... + 10529.

It is an arithmetic number, because the mean of its divisors is an integer number (37800).

2⁸⁷⁰⁵⁰⁴ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 870504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1209600).

870504 is an abundant number, since it is smaller than the sum of its proper divisors (1548696).

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

870504 is a wasteful number, since it uses less digits than its factorization.

870504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134 (or 130 counting only the distinct ones).

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

The square root of 870504 is about 933.0080385506. The cubic root of 870504 is about 95.4824579678.

The spelling of 870504 in words is "eight hundred seventy thousand, five hundred four".