813004838 has 16 divisors (see below), whose sum is σ = 1299802464. Its totient is φ = 380054400.

The previous prime is 813004817. The next prime is 813004847. The reversal of 813004838 is 838400318.

It is a super-2 number, since 2×813004838² = 1321953733222812488, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 813004798 and 813004807.

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, 74045 + ... + 84312.

It is an arithmetic number, because the mean of its divisors is an integer number (81237654).

Almost surely, 2^813004838 is an apocalyptic number.

813004838 is a deficient number, since it is larger than the sum of its proper divisors (486797626).

813004838 is a wasteful number, since it uses less digits than its factorization.

813004838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158527.

The product of its (nonzero) digits is 18432, while the sum is 35.

The square root of 813004838 is about 28513.2396966742. The cubic root of 813004838 is about 933.3210121106.

The spelling of 813004838 in words is "eight hundred thirteen million, four thousand, eight hundred thirty-eight".