870125 has 8 divisors (see below), whose sum is σ = 1086072. Its totient is φ = 696000.

The previous prime is 870109. The next prime is 870127. The reversal of 870125 is 521078.

It can be written as a sum of positive squares in 4 ways, for example, as 3364 + 866761 = 58^2 + 931^2 .

It is not a de Polignac number, because 870125 - 2⁴ = 870109 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 870125.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 870125.

It is not an unprimeable number, because it can be changed into a prime (870127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3356 + ... + 3605.

It is an arithmetic number, because the mean of its divisors is an integer number (135759).

2⁸⁷⁰¹²⁵ is an apocalyptic number.

It is an amenable number.

870125 is a deficient number, since it is larger than the sum of its proper divisors (215947).

870125 is an equidigital number, since it uses as much as digits as its factorization.

870125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6976 (or 6966 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 23.

The square root of 870125 is about 932.8049099356. The cubic root of 870125 is about 95.4685989066.

The spelling of 870125 in words is "eight hundred seventy thousand, one hundred twenty-five".