253479 has 8 divisors (see below), whose sum is σ = 355840. Its totient is φ = 160056.

The previous prime is 253469. The next prime is 253481. The reversal of 253479 is 974352.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 253479 - 2⁵ = 253447 is a prime.

It is an Ulam number.

It is a Duffinian number.

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 253479.

It is not an unprimeable number, because it can be changed into a prime (253439) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2167 + ... + 2280.

It is an arithmetic number, because the mean of its divisors is an integer number (44480).

2²⁵³⁴⁷⁹ is an apocalyptic number.

253479 is a deficient number, since it is larger than the sum of its proper divisors (102361).

253479 is a wasteful number, since it uses less digits than its factorization.

253479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4469.

The product of its digits is 7560, while the sum is 30.

The square root of 253479 is about 503.4669800493. The cubic root of 253479 is about 63.2869250664.

The spelling of 253479 in words is "two hundred fifty-three thousand, four hundred seventy-nine".