864460899 has 24 divisors (see below), whose sum is σ = 1280869200. Its totient is φ = 561592512.

The previous prime is 864460889. The next prime is 864460907. The reversal of 864460899 is 998064468.

It is not a de Polignac number, because 864460899 - 2⁸ = 864460643 is a prime.

It is not an unprimeable number, because it can be changed into a prime (864460889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 64992 + ... + 77154.

It is an arithmetic number, because the mean of its divisors is an integer number (53369550).

Almost surely, 2^864460899 is an apocalyptic number.

864460899 is a deficient number, since it is larger than the sum of its proper divisors (416408301).

864460899 is a wasteful number, since it uses less digits than its factorization.

864460899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12371 (or 12368 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 54.

The square root of 864460899 is about 29401.7159193133. The cubic root of 864460899 is about 952.6099602319.

The spelling of 864460899 in words is "eight hundred sixty-four million, four hundred sixty thousand, eight hundred ninety-nine".