812373 has 4 divisors (see below), whose sum is σ = 1083168. Its totient is φ = 541580.

The previous prime is 812363. The next prime is 812381. The reversal of 812373 is 373218.

812373 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 812373 - 2⁵ = 812341 is a prime.

It is a super-2 number, since 2×812373² = 1319899782258, which contains 22 as substring.

It is an Ulam number.

It is a D-number.

812373 is a lucky number.

It is a nialpdrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (812353) 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, 135393 + ... + 135398.

It is an arithmetic number, because the mean of its divisors is an integer number (270792).

2⁸¹²³⁷³ is an apocalyptic number.

It is an amenable number.

812373 is a deficient number, since it is larger than the sum of its proper divisors (270795).

812373 is a wasteful number, since it uses less digits than its factorization.

812373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270794.

The product of its digits is 1008, while the sum is 24.

The square root of 812373 is about 901.3173691880. The cubic root of 812373 is about 93.3079168320.

The spelling of 812373 in words is "eight hundred twelve thousand, three hundred seventy-three".