279253 has 4 divisors (see below), whose sum is σ = 300748. Its totient is φ = 257760.

The previous prime is 279221. The next prime is 279269. The reversal of 279253 is 352972.

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 117649 + 161604 = 343^2 + 402^2 .

It is a cyclic number.

It is not a de Polignac number, because 279253 - 2⁵ = 279221 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 (279203) 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, 10728 + ... + 10753.

It is an arithmetic number, because the mean of its divisors is an integer number (75187).

2²⁷⁹²⁵³ is an apocalyptic number.

It is an amenable number.

279253 is a deficient number, since it is larger than the sum of its proper divisors (21495).

279253 is a wasteful number, since it uses less digits than its factorization.

279253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21494.

The product of its digits is 3780, while the sum is 28.

The square root of 279253 is about 528.4439421547. The cubic root of 279253 is about 65.3630961391.

The spelling of 279253 in words is "two hundred seventy-nine thousand, two hundred fifty-three".