864802218 has 16 divisors (see below), whose sum is σ = 1976690880. Its totient is φ = 247086336.

The previous prime is 864802201. The next prime is 864802247. The reversal of 864802218 is 812208468.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10295223 + ... + 10295306.

It is an arithmetic number, because the mean of its divisors is an integer number (123543180).

Almost surely, 2^864802218 is an apocalyptic number.

864802218 is an abundant number, since it is smaller than the sum of its proper divisors (1111888662).

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

864802218 is a wasteful number, since it uses less digits than its factorization.

864802218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20590541.

The product of its (nonzero) digits is 49152, while the sum is 39.

The square root of 864802218 is about 29407.5197526075. The cubic root of 864802218 is about 952.7353181654.

The spelling of 864802218 in words is "eight hundred sixty-four million, eight hundred two thousand, two hundred eighteen".