279713 has 8 divisors (see below), whose sum is σ = 330240. Its totient is φ = 231840.

The previous prime is 279709. The next prime is 279731. The reversal of 279713 is 317972.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 279713 - 2² = 279709 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (279413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 428 + ... + 861.

It is an arithmetic number, because the mean of its divisors is an integer number (41280).

2²⁷⁹⁷¹³ is an apocalyptic number.

It is an amenable number.

279713 is a deficient number, since it is larger than the sum of its proper divisors (50527).

279713 is a wasteful number, since it uses less digits than its factorization.

279713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1327.

The product of its digits is 2646, while the sum is 29.

The square root of 279713 is about 528.8790031756. The cubic root of 279713 is about 65.3989662759.

The spelling of 279713 in words is "two hundred seventy-nine thousand, seven hundred thirteen".