831625 has 8 divisors (see below), whose sum is σ = 1038024. Its totient is φ = 665200.

The previous prime is 831619. The next prime is 831631. The reversal of 831625 is 526138.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (831619) and next prime (831631).

It can be written as a sum of positive squares in 4 ways, for example, as 210681 + 620944 = 459^2 + 788^2 .

It is not a de Polignac number, because 831625 - 2³ = 831617 is a prime.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 831625.

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, 3202 + ... + 3451.

It is an arithmetic number, because the mean of its divisors is an integer number (129753).

2⁸³¹⁶²⁵ is an apocalyptic number.

It is an amenable number.

831625 is a deficient number, since it is larger than the sum of its proper divisors (206399).

831625 is an equidigital number, since it uses as much as digits as its factorization.

831625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6668 (or 6658 counting only the distinct ones).

The product of its digits is 1440, while the sum is 25.

The square root of 831625 is about 911.9347564382. The cubic root of 831625 is about 94.0392547682.

The spelling of 831625 in words is "eight hundred thirty-one thousand, six hundred twenty-five".