811226959 has 2 divisors, whose sum is σ = 811226960. Its totient is φ = 811226958.

The previous prime is 811226953. The next prime is 811226981. The reversal of 811226959 is 959622118.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 811226959 - 2²⁷ = 677009231 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (811226953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 405613479 + 405613480.

It is an arithmetic number, because the mean of its divisors is an integer number (405613480).

Almost surely, 2^811226959 is an apocalyptic number.

811226959 is a deficient number, since it is larger than the sum of its proper divisors (1).

811226959 is an equidigital number, since it uses as much as digits as its factorization.

811226959 is an evil number, because the sum of its binary digits is even.

The product of its digits is 77760, while the sum is 43.

The square root of 811226959 is about 28482.0462572477. The cubic root of 811226959 is about 932.6401867887.

The spelling of 811226959 in words is "eight hundred eleven million, two hundred twenty-six thousand, nine hundred fifty-nine".