279172 has 12 divisors (see below), whose sum is σ = 495936. Its totient is φ = 137480.

The previous prime is 279143. The next prime is 279173. The reversal of 279172 is 271972.

It is a happy number.

It is a zygodrome in base 6.

It is a self number, because there is not a number n which added to its sum of digits gives 279172.

It is not an unprimeable number, because it can be changed into a prime (279173) by changing a digit.

279172 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 208 + ... + 775.

It is an arithmetic number, because the mean of its divisors is an integer number (41328).

2²⁷⁹¹⁷² is an apocalyptic number.

It is an amenable number.

279172 is a deficient number, since it is larger than the sum of its proper divisors (216764).

279172 is a wasteful number, since it uses less digits than its factorization.

279172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1058 (or 1056 counting only the distinct ones).

The product of its digits is 1764, while the sum is 28.

The square root of 279172 is about 528.3672964899. The cubic root of 279172 is about 65.3567757978.

The spelling of 279172 in words is "two hundred seventy-nine thousand, one hundred seventy-two".