864833656 has 24 divisors (see below), whose sum is σ = 1722564720. Its totient is φ = 406979456.

The previous prime is 864833653. The next prime is 864833663. The reversal of 864833656 is 656338468.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (864833653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 184720 + ... + 189343.

It is an arithmetic number, because the mean of its divisors is an integer number (71773530).

Almost surely, 2^864833656 is an apocalyptic number.

It is an amenable number.

864833656 is a deficient number, since it is larger than the sum of its proper divisors (857731064).

864833656 is a wasteful number, since it uses less digits than its factorization.

864833656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374103 (or 374082 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 49.

The square root of 864833656 is about 29408.0542708966. The cubic root of 864833656 is about 952.7468628976.

The spelling of 864833656 in words is "eight hundred sixty-four million, eight hundred thirty-three thousand, six hundred fifty-six".