279361 has 4 divisors (see below), whose sum is σ = 295812. Its totient is φ = 262912.

The previous prime is 279353. The next prime is 279397. The reversal of 279361 is 163972.

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

It can be written as a sum of positive squares in 2 ways, for example, as 255025 + 24336 = 505^2 + 156^2 .

It is a cyclic number.

It is not a de Polignac number, because 279361 - 2³ = 279353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (279311) 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, 8200 + ... + 8233.

It is an arithmetic number, because the mean of its divisors is an integer number (73953).

2²⁷⁹³⁶¹ is an apocalyptic number.

It is an amenable number.

279361 is a deficient number, since it is larger than the sum of its proper divisors (16451).

279361 is a wasteful number, since it uses less digits than its factorization.

279361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16450.

The product of its digits is 2268, while the sum is 28.

The square root of 279361 is about 528.5461190852. The cubic root of 279361 is about 65.3715213598.

The spelling of 279361 in words is "two hundred seventy-nine thousand, three hundred sixty-one".