868625 has 8 divisors (see below), whose sum is σ = 1084200. Its totient is φ = 694800.

The previous prime is 868613. The next prime is 868639. The reversal of 868625 is 526868.

It is a Cunningham number, because it is equal to 932²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 1 + 868624 = 1^2 + 932^2 .

It is not a de Polignac number, because 868625 - 2⁶ = 868561 is a prime.

It is a nialpdrome in base 16.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 868625.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3350 + ... + 3599.

It is an arithmetic number, because the mean of its divisors is an integer number (135525).

2⁸⁶⁸⁶²⁵ is an apocalyptic number.

It is an amenable number.

868625 is a deficient number, since it is larger than the sum of its proper divisors (215575).

868625 is an equidigital number, since it uses as much as digits as its factorization.

868625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6964 (or 6954 counting only the distinct ones).

The product of its digits is 23040, while the sum is 35.

The square root of 868625 is about 932.0005364805. Note that the first 3 decimals coincide. The cubic root of 868625 is about 95.4137082239.

The spelling of 868625 in words is "eight hundred sixty-eight thousand, six hundred twenty-five".