864944704 has 84 divisors (see below), whose sum is σ = 1872294960. Its totient is φ = 396264960.

The previous prime is 864944701. The next prime is 864944711. The reversal of 864944704 is 407449468.

It is not an unprimeable number, because it can be changed into a prime (864944701) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2281987 + ... + 2282365.

Almost surely, 2^864944704 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 864944704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (936147480).

864944704 is an abundant number, since it is smaller than the sum of its proper divisors (1007350256).

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

864944704 is a wasteful number, since it uses less digits than its factorization.

864944704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 628 (or 605 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 46.

The square root of 864944704 is about 29409.9422644792. The cubic root of 864944704 is about 952.7876399514.

The spelling of 864944704 in words is "eight hundred sixty-four million, nine hundred forty-four thousand, seven hundred four".