813485874 has 32 divisors (see below), whose sum is σ = 1740692160. Its totient is φ = 252676800.

The previous prime is 813485833. The next prime is 813485909. The reversal of 813485874 is 478584318.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax 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, 51537 + ... + 65444.

It is an arithmetic number, because the mean of its divisors is an integer number (54396630).

Almost surely, 2^813485874 is an apocalyptic number.

813485874 is an abundant number, since it is smaller than the sum of its proper divisors (927206286).

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

813485874 is a wasteful number, since it uses less digits than its factorization.

813485874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117066.

The product of its digits is 860160, while the sum is 48.

The square root of 813485874 is about 28521.6737587400. The cubic root of 813485874 is about 933.5050505763.

The spelling of 813485874 in words is "eight hundred thirteen million, four hundred eighty-five thousand, eight hundred seventy-four".