864494814 has 32 divisors (see below), whose sum is σ = 1795076640. Its totient is φ = 277222400.

The previous prime is 864494773. The next prime is 864494849. The reversal of 864494814 is 418494468.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40054 + ... + 57734.

It is an arithmetic number, because the mean of its divisors is an integer number (56096145).

Almost surely, 2^864494814 is an apocalyptic number.

864494814 is an abundant number, since it is smaller than the sum of its proper divisors (930581826).

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

864494814 is a wasteful number, since it uses less digits than its factorization.

864494814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17996.

The product of its digits is 884736, while the sum is 48.

The square root of 864494814 is about 29402.2926657089. The cubic root of 864494814 is about 952.6224178396.

The spelling of 864494814 in words is "eight hundred sixty-four million, four hundred ninety-four thousand, eight hundred fourteen".