864535564 has 12 divisors (see below), whose sum is σ = 1561741888. Its totient is φ = 418323600.

The previous prime is 864535513. The next prime is 864535591. The reversal of 864535564 is 465535468.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 3485907 + ... + 3486154.

Almost surely, 2^864535564 is an apocalyptic number.

It is an amenable number.

864535564 is a deficient number, since it is larger than the sum of its proper divisors (697206324).

864535564 is a wasteful number, since it uses less digits than its factorization.

864535564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6972096 (or 6972094 counting only the distinct ones).

The product of its digits is 1728000, while the sum is 46.

The square root of 864535564 is about 29402.9856307144. The cubic root of 864535564 is about 952.6373856385.

The spelling of 864535564 in words is "eight hundred sixty-four million, five hundred thirty-five thousand, five hundred sixty-four".