812379 has 12 divisors (see below), whose sum is σ = 1151864. Its totient is φ = 509184.

The previous prime is 812363. The next prime is 812381. The reversal of 812379 is 973218.

It is a happy number.

It is not a de Polignac number, because 812379 - 2⁴ = 812363 is a prime.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (812309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 399 + ... + 1335.

2⁸¹²³⁷⁹ is an apocalyptic number.

812379 is a deficient number, since it is larger than the sum of its proper divisors (339485).

812379 is a wasteful number, since it uses less digits than its factorization.

812379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 974 (or 957 counting only the distinct ones).

The product of its digits is 3024, while the sum is 30.

The square root of 812379 is about 901.3206976432. The cubic root of 812379 is about 93.3081465484.

The spelling of 812379 in words is "eight hundred twelve thousand, three hundred seventy-nine".