811966023 has 36 divisors (see below), whose sum is σ = 1293015360. Its totient is φ = 490628160.

The previous prime is 811965977. The next prime is 811966037. The reversal of 811966023 is 320669118.

811966023 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 811966023 - 2⁸ = 811965767 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (811966063) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 444490 + ... + 446312.

Almost surely, 2^811966023 is an apocalyptic number.

811966023 is a deficient number, since it is larger than the sum of its proper divisors (481049337).

811966023 is a wasteful number, since it uses less digits than its factorization.

811966023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2260 (or 2246 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 811966023 is about 28495.0175118388. The cubic root of 811966023 is about 932.9233264466.

The spelling of 811966023 in words is "eight hundred eleven million, nine hundred sixty-six thousand, twenty-three".