812600823 has 16 divisors (see below), whose sum is σ = 1107872640. Its totient is φ = 529605024.

The previous prime is 812600819. The next prime is 812600827. The reversal of 812600823 is 328006218.

It is an interprime number because it is at equal distance from previous prime (812600819) and next prime (812600827).

It is not a de Polignac number, because 812600823 - 2² = 812600819 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (812600827) 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 in 15 ways as a sum of consecutive naturals, for example, 35968 + ... + 54026.

It is an arithmetic number, because the mean of its divisors is an integer number (69242040).

Almost surely, 2^812600823 is an apocalyptic number.

812600823 is a deficient number, since it is larger than the sum of its proper divisors (295271817).

812600823 is a wasteful number, since it uses less digits than its factorization.

812600823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18398.

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 812600823 is about 28506.1541250306. The cubic root of 812600823 is about 933.1663848358.

The spelling of 812600823 in words is "eight hundred twelve million, six hundred thousand, eight hundred twenty-three".