864460788 has 12 divisors (see below), whose sum is σ = 2017075200. Its totient is φ = 288153592.

The previous prime is 864460787. The next prime is 864460837. The reversal of 864460788 is 887064468.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 864460788.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (864460781) 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, 36019188 + ... + 36019211.

It is an arithmetic number, because the mean of its divisors is an integer number (168089600).

Almost surely, 2^864460788 is an apocalyptic number.

It is an amenable number.

864460788 is an abundant number, since it is smaller than the sum of its proper divisors (1152614412).

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

864460788 is a wasteful number, since it uses less digits than its factorization.

864460788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72038406 (or 72038404 counting only the distinct ones).

The product of its (nonzero) digits is 2064384, while the sum is 51.

The square root of 864460788 is about 29401.7140316683. The cubic root of 864460788 is about 952.6099194590.

The spelling of 864460788 in words is "eight hundred sixty-four million, four hundred sixty thousand, seven hundred eighty-eight".