863408164 has 12 divisors (see below), whose sum is σ = 1529169264. Its totient is φ = 426502664.

The previous prime is 863408159. The next prime is 863408177. The reversal of 863408164 is 461804368.

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, 1299982 + ... + 1300645.

It is an arithmetic number, because the mean of its divisors is an integer number (127430772).

Almost surely, 2^863408164 is an apocalyptic number.

It is an amenable number.

863408164 is a deficient number, since it is larger than the sum of its proper divisors (665761100).

863408164 is a wasteful number, since it uses less digits than its factorization.

863408164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2600714 (or 2600712 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 40.

The square root of 863408164 is about 29383.8078539865. The cubic root of 863408164 is about 952.2231090318.

The spelling of 863408164 in words is "eight hundred sixty-three million, four hundred eight thousand, one hundred sixty-four".