864594912 has 24 divisors (see below), whose sum is σ = 2269561896. Its totient is φ = 288198272.

The previous prime is 864594911. The next prime is 864594917. The reversal of 864594912 is 219495468.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (864594911) 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, 4503003 + ... + 4503194.

It is an arithmetic number, because the mean of its divisors is an integer number (94565079).

Almost surely, 2^864594912 is an apocalyptic number.

It is an amenable number.

864594912 is an abundant number, since it is smaller than the sum of its proper divisors (1404966984).

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

864594912 is a wasteful number, since it uses less digits than its factorization.

864594912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9006210 (or 9006202 counting only the distinct ones).

The product of its digits is 622080, while the sum is 48.

The square root of 864594912 is about 29403.9948306348. The cubic root of 864594912 is about 952.6591837894.

The spelling of 864594912 in words is "eight hundred sixty-four million, five hundred ninety-four thousand, nine hundred twelve".