864318925 has 6 divisors (see below), whose sum is σ = 1071755498. Its totient is φ = 691455120.

The previous prime is 864318919. The next prime is 864318941. The reversal of 864318925 is 529813468.

It can be written as a sum of positive squares in 3 ways, for example, as 72965764 + 791353161 = 8542^2 + 28131^2 .

It is not a de Polignac number, because 864318925 - 2⁵ = 864318893 is a prime.

It is a super-2 number, since 2×864318925² = 1494094408226311250, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17286354 + ... + 17286403.

Almost surely, 2^864318925 is an apocalyptic number.

It is an amenable number.

864318925 is a deficient number, since it is larger than the sum of its proper divisors (207436573).

864318925 is a wasteful number, since it uses less digits than its factorization.

864318925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34572767 (or 34572762 counting only the distinct ones).

The product of its digits is 414720, while the sum is 46.

The square root of 864318925 is about 29399.3014372791. The cubic root of 864318925 is about 952.5578070147.

The spelling of 864318925 in words is "eight hundred sixty-four million, three hundred eighteen thousand, nine hundred twenty-five".