279343 has 4 divisors (see below), whose sum is σ = 281520. Its totient is φ = 277168.

The previous prime is 279337. The next prime is 279353. The reversal of 279343 is 343972.

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

It is a cyclic number.

It is not a de Polignac number, because 279343 - 2⁵ = 279311 is a prime.

It is a Duffinian number.

279343 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (279353) 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, 883 + ... + 1156.

It is an arithmetic number, because the mean of its divisors is an integer number (70380).

2²⁷⁹³⁴³ is an apocalyptic number.

279343 is a deficient number, since it is larger than the sum of its proper divisors (2177).

279343 is a wasteful number, since it uses less digits than its factorization.

279343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2176.

The product of its digits is 4536, while the sum is 28.

The square root of 279343 is about 528.5290909685. The cubic root of 279343 is about 65.3701173072.

The spelling of 279343 in words is "two hundred seventy-nine thousand, three hundred forty-three".