319879 has 4 divisors (see below), whose sum is σ = 365584. Its totient is φ = 274176.

The previous prime is 319849. The next prime is 319883. The reversal of 319879 is 978913.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 319879 - 2¹¹ = 317831 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (319819) 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, 22842 + ... + 22855.

It is an arithmetic number, because the mean of its divisors is an integer number (91396).

2³¹⁹⁸⁷⁹ is an apocalyptic number.

319879 is a deficient number, since it is larger than the sum of its proper divisors (45705).

319879 is an equidigital number, since it uses as much as digits as its factorization.

319879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45704.

The product of its digits is 13608, while the sum is 37.

The square root of 319879 is about 565.5784649366. The cubic root of 319879 is about 68.3904156515.

The spelling of 319879 in words is "three hundred nineteen thousand, eight hundred seventy-nine".