811926023 has 2 divisors, whose sum is σ = 811926024. Its totient is φ = 811926022.

The previous prime is 811926019. The next prime is 811926041. The reversal of 811926023 is 320629118.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 811926023 - 2² = 811926019 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (811926623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 405963011 + 405963012.

It is an arithmetic number, because the mean of its divisors is an integer number (405963012).

Almost surely, 2^811926023 is an apocalyptic number.

811926023 is a deficient number, since it is larger than the sum of its proper divisors (1).

811926023 is an equidigital number, since it uses as much as digits as its factorization.

811926023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 811926023 is about 28494.3156261034. The cubic root of 811926023 is about 932.9080066160.

The spelling of 811926023 in words is "eight hundred eleven million, nine hundred twenty-six thousand, twenty-three".