813305854 has 8 divisors (see below), whose sum is σ = 1220115168. Its totient is φ = 406600800.

The previous prime is 813305851. The next prime is 813305873. The reversal of 813305854 is 458503318.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×813305854² = 1322932824301338632, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (813305851) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2187 + ... + 40390.

It is an arithmetic number, because the mean of its divisors is an integer number (152514396).

Almost surely, 2^813305854 is an apocalyptic number.

813305854 is a deficient number, since it is larger than the sum of its proper divisors (406809314).

813305854 is a wasteful number, since it uses less digits than its factorization.

813305854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52130.

The product of its (nonzero) digits is 57600, while the sum is 37.

The square root of 813305854 is about 28518.5177384800. The cubic root of 813305854 is about 933.4361856325.

The spelling of 813305854 in words is "eight hundred thirteen million, three hundred five thousand, eight hundred fifty-four".