864634264 has 16 divisors (see below), whose sum is σ = 1745896320. Its totient is φ = 399061920.

The previous prime is 864634247. The next prime is 864634279. The reversal of 864634264 is 462436468.

It is a self number, because there is not a number n which added to its sum of digits gives 864634264.

It is a congruent number.

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, 4156792 + ... + 4156999.

It is an arithmetic number, because the mean of its divisors is an integer number (109118520).

Almost surely, 2^864634264 is an apocalyptic number.

It is an amenable number.

864634264 is an abundant number, since it is smaller than the sum of its proper divisors (881262056).

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

864634264 is a wasteful number, since it uses less digits than its factorization.

864634264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8313810 (or 8313806 counting only the distinct ones).

The product of its digits is 663552, while the sum is 43.

The square root of 864634264 is about 29404.6639837969. The cubic root of 864634264 is about 952.6736369839.

The spelling of 864634264 in words is "eight hundred sixty-four million, six hundred thirty-four thousand, two hundred sixty-four".