813104207 has 2 divisors, whose sum is σ = 813104208. Its totient is φ = 813104206.

The previous prime is 813104191. The next prime is 813104263. The reversal of 813104207 is 702401318.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 813104207 - 2⁴ = 813104191 is a prime.

It is a super-2 number, since 2×813104207² = 1322276902882197698, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (813104507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 406552103 + 406552104.

It is an arithmetic number, because the mean of its divisors is an integer number (406552104).

Almost surely, 2^813104207 is an apocalyptic number.

813104207 is a deficient number, since it is larger than the sum of its proper divisors (1).

813104207 is an equidigital number, since it uses as much as digits as its factorization.

813104207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 813104207 is about 28514.9821497402. The cubic root of 813104207 is about 933.3590354175.

The spelling of 813104207 in words is "eight hundred thirteen million, one hundred four thousand, two hundred seven".