813407039 has 2 divisors, whose sum is σ = 813407040. Its totient is φ = 813407038.

The previous prime is 813407033. The next prime is 813407069. The reversal of 813407039 is 930704318.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 813407039 - 2¹² = 813402943 is a prime.

It is a super-2 number, since 2×813407039² = 1323262022189495042, 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 (813407033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 406703519 + 406703520.

It is an arithmetic number, because the mean of its divisors is an integer number (406703520).

Almost surely, 2^813407039 is an apocalyptic number.

813407039 is a deficient number, since it is larger than the sum of its proper divisors (1).

813407039 is an equidigital number, since it uses as much as digits as its factorization.

813407039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 813407039 is about 28520.2917060818. The cubic root of 813407039 is about 933.4748942452.

The spelling of 813407039 in words is "eight hundred thirteen million, four hundred seven thousand, thirty-nine".