865608652 has 12 divisors (see below), whose sum is σ = 1603922040. Its totient is φ = 407345216.

The previous prime is 865608649. The next prime is 865608659. The reversal of 865608652 is 256806568.

It is not an unprimeable number, because it can be changed into a prime (865608659) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6364702 + ... + 6364837.

It is an arithmetic number, because the mean of its divisors is an integer number (133660170).

Almost surely, 2^865608652 is an apocalyptic number.

It is an amenable number.

865608652 is a deficient number, since it is larger than the sum of its proper divisors (738313388).

865608652 is a wasteful number, since it uses less digits than its factorization.

865608652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12729560 (or 12729558 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 46.

The square root of 865608652 is about 29421.2279145518. The cubic root of 865608652 is about 953.0313702340.

The spelling of 865608652 in words is "eight hundred sixty-five million, six hundred eight thousand, six hundred fifty-two".