312879 has 16 divisors (see below), whose sum is σ = 488448. Its totient is φ = 174432.

The previous prime is 312863. The next prime is 312887. The reversal of 312879 is 978213.

It is a happy number.

It is not a de Polignac number, because 312879 - 2⁴ = 312863 is a prime.

312879 is a lucky number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 312879.

It is not an unprimeable number, because it can be changed into a prime (312839) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 829 + ... + 1145.

It is an arithmetic number, because the mean of its divisors is an integer number (30528).

2³¹²⁸⁷⁹ is an apocalyptic number.

312879 is a deficient number, since it is larger than the sum of its proper divisors (175569).

312879 is a wasteful number, since it uses less digits than its factorization.

312879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374.

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

The square root of 312879 is about 559.3558795615. The cubic root of 312879 is about 67.8878630458.

The spelling of 312879 in words is "three hundred twelve thousand, eight hundred seventy-nine".