279924 has 12 divisors (see below), whose sum is σ = 653184. Its totient is φ = 93304.

The previous prime is 279919. The next prime is 279941. The reversal of 279924 is 429972.

It is a tau number, because it is divible by the number of its divisors (12).

It is a nialpdrome in base 6.

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 279924.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11652 + ... + 11675.

It is an arithmetic number, because the mean of its divisors is an integer number (54432).

2²⁷⁹⁹²⁴ is an apocalyptic number.

It is an amenable number.

279924 is an abundant number, since it is smaller than the sum of its proper divisors (373260).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

279924 is a wasteful number, since it uses less digits than its factorization.

279924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23334 (or 23332 counting only the distinct ones).

The product of its digits is 9072, while the sum is 33.

The square root of 279924 is about 529.0784440893. The cubic root of 279924 is about 65.4154065958.

It can be divided in two parts, 2799 and 24, that multiplied together give a palindrome (67176).

The spelling of 279924 in words is "two hundred seventy-nine thousand, nine hundred twenty-four".