864214918 has 16 divisors (see below), whose sum is σ = 1487715840. Its totient is φ = 368826696.

The previous prime is 864214913. The next prime is 864214963. The reversal of 864214918 is 819412468.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (864214913) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125796 + ... + 132487.

It is an arithmetic number, because the mean of its divisors is an integer number (92982240).

Almost surely, 2^864214918 is an apocalyptic number.

864214918 is a deficient number, since it is larger than the sum of its proper divisors (623500922).

864214918 is a wasteful number, since it uses less digits than its factorization.

864214918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258531.

The product of its digits is 110592, while the sum is 43.

The square root of 864214918 is about 29397.5325155020. The cubic root of 864214918 is about 952.5195971012.

The spelling of 864214918 in words is "eight hundred sixty-four million, two hundred fourteen thousand, nine hundred eighteen".