864312028 has 24 divisors (see below), whose sum is σ = 1606100832. Its totient is φ = 405571584.

The previous prime is 864312017. The next prime is 864312041. The reversal of 864312028 is 820213468.

864312028 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a junction number, because it is equal to n+sod(n) for n = 864311984 and 864312002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6001 + ... + 42007.

It is an arithmetic number, because the mean of its divisors is an integer number (66920868).

Almost surely, 2^864312028 is an apocalyptic number.

It is an amenable number.

864312028 is a deficient number, since it is larger than the sum of its proper divisors (741788804).

864312028 is a wasteful number, since it uses less digits than its factorization.

864312028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36381 (or 36379 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 34.

The square root of 864312028 is about 29399.1841383396. The cubic root of 864312028 is about 952.5552733015. Note that the first 3 decimals are identical.

The spelling of 864312028 in words is "eight hundred sixty-four million, three hundred twelve thousand, twenty-eight".