868825 has 12 divisors (see below), whose sum is σ = 1124928. Its totient is φ = 664400.

The previous prime is 868817. The next prime is 868841. The reversal of 868825 is 528868.

868825 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 868825 - 2³ = 868817 is a prime.

It is a Duffinian number.

868825 is a lucky number.

It is a plaindrome in base 14 and base 15.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 181 + ... + 1330.

It is an arithmetic number, because the mean of its divisors is an integer number (93744).

2⁸⁶⁸⁸²⁵ is an apocalyptic number.

It is an amenable number.

868825 is a deficient number, since it is larger than the sum of its proper divisors (256103).

868825 is a wasteful number, since it uses less digits than its factorization.

868825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1544 (or 1539 counting only the distinct ones).

The product of its digits is 30720, while the sum is 37.

The square root of 868825 is about 932.1078263806. The cubic root of 868825 is about 95.4210306308.

It can be divided in two parts, 86 and 8825, that added together give a triangular number (8911 = T₁₃₃).

The spelling of 868825 in words is "eight hundred sixty-eight thousand, eight hundred twenty-five".