275479 has 4 divisors (see below), whose sum is σ = 282240. Its totient is φ = 268720.

The previous prime is 275461. The next prime is 275489. The reversal of 275479 is 974572.

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 275479 - 2⁵ = 275447 is a prime.

It is a Duffinian number.

275479 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (275419) 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, 3319 + ... + 3400.

It is an arithmetic number, because the mean of its divisors is an integer number (70560).

2²⁷⁵⁴⁷⁹ is an apocalyptic number.

275479 is a deficient number, since it is larger than the sum of its proper divisors (6761).

275479 is an equidigital number, since it uses as much as digits as its factorization.

275479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6760.

The product of its digits is 17640, while the sum is 34.

The square root of 275479 is about 524.8609339625. The cubic root of 275479 is about 65.0673070059.

It can be divided in two parts, 27547 and 9, that added together give a square (27556 = 166²).

The spelling of 275479 in words is "two hundred seventy-five thousand, four hundred seventy-nine".