813813004 has 12 divisors (see below), whose sum is σ = 1426358304. Its totient is φ = 406282064.

The previous prime is 813812999. The next prime is 813813029. The reversal of 813813004 is 400318318.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 153172 + ... + 158395.

It is an arithmetic number, because the mean of its divisors is an integer number (118863192).

Almost surely, 2^813813004 is an apocalyptic number.

It is an amenable number.

813813004 is a deficient number, since it is larger than the sum of its proper divisors (612545300).

813813004 is a wasteful number, since it uses less digits than its factorization.

813813004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312224 (or 312222 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 813813004 is about 28527.4079439405. The cubic root of 813813004 is about 933.6301650545.

The spelling of 813813004 in words is "eight hundred thirteen million, eight hundred thirteen thousand, four".