870625 has 20 divisors (see below), whose sum is σ = 1249600. Its totient is φ = 594000.

The previous prime is 870613. The next prime is 870629. The reversal of 870625 is 526078.

It is not a de Polignac number, because 870625 - 2⁵ = 870593 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 870593 and 870602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (870629) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4276 + ... + 4474.

It is an arithmetic number, because the mean of its divisors is an integer number (62480).

2⁸⁷⁰⁶²⁵ is an apocalyptic number.

It is an amenable number.

870625 is a deficient number, since it is larger than the sum of its proper divisors (378975).

870625 is an equidigital number, since it uses as much as digits as its factorization.

870625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226 (or 211 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 870625 is about 933.0728803261. The cubic root of 870625 is about 95.4868817814.

The spelling of 870625 in words is "eight hundred seventy thousand, six hundred twenty-five".