812286923 has 4 divisors (see below), whose sum is σ = 928327920. Its totient is φ = 696245928.

The previous prime is 812286907. The next prime is 812286961. The reversal of 812286923 is 329682218.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 329682218 = 2 ⋅164841109.

It is not a de Polignac number, because 812286923 - 2⁴ = 812286907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (812286983) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58020488 + ... + 58020501.

It is an arithmetic number, because the mean of its divisors is an integer number (232081980).

Almost surely, 2^812286923 is an apocalyptic number.

812286923 is a deficient number, since it is larger than the sum of its proper divisors (116040997).

812286923 is a wasteful number, since it uses less digits than its factorization.

812286923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116040996.

The product of its digits is 82944, while the sum is 41.

The square root of 812286923 is about 28500.6477645684. The cubic root of 812286923 is about 933.0462115825.

The spelling of 812286923 in words is "eight hundred twelve million, two hundred eighty-six thousand, nine hundred twenty-three".