813355104 has 48 divisors (see below), whose sum is σ = 2136843072. Its totient is φ = 270891648.

The previous prime is 813355099. The next prime is 813355139. The reversal of 813355104 is 401553318.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 143427 + ... + 148989.

It is an arithmetic number, because the mean of its divisors is an integer number (44517564).

Almost surely, 2^813355104 is an apocalyptic number.

It is an amenable number.

813355104 is an abundant number, since it is smaller than the sum of its proper divisors (1323487968).

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

813355104 is a wasteful number, since it uses less digits than its factorization.

813355104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7099 (or 7091 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 813355104 is about 28519.3811994580. The cubic root of 813355104 is about 933.4550267626.

The spelling of 813355104 in words is "eight hundred thirteen million, three hundred fifty-five thousand, one hundred four".