279271 has 4 divisors (see below), whose sum is σ = 280912. Its totient is φ = 277632.

The previous prime is 279269. The next prime is 279311. The reversal of 279271 is 172972.

It is a happy number.

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 279271 - 2¹ = 279269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (279211) 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, 531 + ... + 916.

It is an arithmetic number, because the mean of its divisors is an integer number (70228).

2²⁷⁹²⁷¹ is an apocalyptic number.

279271 is a deficient number, since it is larger than the sum of its proper divisors (1641).

279271 is a wasteful number, since it uses less digits than its factorization.

279271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1640.

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

The square root of 279271 is about 528.4609730150. The cubic root of 279271 is about 65.3645004934.

The spelling of 279271 in words is "two hundred seventy-nine thousand, two hundred seventy-one".