870650 has 24 divisors (see below), whose sum is σ = 1767744. Its totient is φ = 316400.

The previous prime is 870643. The next prime is 870679. The reversal of 870650 is 56078.

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 242 + ... + 1341.

It is an arithmetic number, because the mean of its divisors is an integer number (73656).

2⁸⁷⁰⁶⁵⁰ is an apocalyptic number.

870650 is an abundant number, since it is smaller than the sum of its proper divisors (897094).

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

870650 is a wasteful number, since it uses less digits than its factorization.

870650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1606 (or 1601 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 870650 is about 933.0862768255. The cubic root of 870650 is about 95.4877957413.

The spelling of 870650 in words is "eight hundred seventy thousand, six hundred fifty".