813204679 has 16 divisors (see below), whose sum is σ = 963072000. Its totient is φ = 671935680.

The previous prime is 813204671. The next prime is 813204719. The reversal of 813204679 is 976402318.

It is a cyclic number.

It is not a de Polignac number, because 813204679 - 2³ = 813204671 is a prime.

It is a super-2 number, since 2×813204679² = 1322603699894986082, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (813204671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49947 + ... + 64195.

It is an arithmetic number, because the mean of its divisors is an integer number (60192000).

Almost surely, 2^813204679 is an apocalyptic number.

813204679 is a deficient number, since it is larger than the sum of its proper divisors (149867321).

813204679 is a wasteful number, since it uses less digits than its factorization.

813204679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14550.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 813204679 is about 28516.7438358590. The cubic root of 813204679 is about 933.3974776352.

The spelling of 813204679 in words is "eight hundred thirteen million, two hundred four thousand, six hundred seventy-nine".