864817344 has 56 divisors (see below), whose sum is σ = 2542407920. Its totient is φ = 288271872.

The previous prime is 864817309. The next prime is 864817351. The reversal of 864817344 is 443718468.

It is a self number, because there is not a number n which added to its sum of digits gives 864817344.

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, 248509 + ... + 251964.

Almost surely, 2^864817344 is an apocalyptic number.

It is an amenable number.

864817344 is an abundant number, since it is smaller than the sum of its proper divisors (1677590576).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

864817344 is a wasteful number, since it uses less digits than its factorization.

864817344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500494 (or 500478 counting only the distinct ones).

The product of its digits is 516096, while the sum is 45.

The square root of 864817344 is about 29407.7769306012. The cubic root of 864817344 is about 952.7408728037.

The spelling of 864817344 in words is "eight hundred sixty-four million, eight hundred seventeen thousand, three hundred forty-four".