265479 has 4 divisors (see below), whose sum is σ = 353976. Its totient is φ = 176984.

The previous prime is 265471. The next prime is 265483. The reversal of 265479 is 974562.

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 265479 - 2³ = 265471 is a prime.

It is a d-powerful number, because it can be written as 2⁹ + 6³ + 4⁹ + 5³ + 7⁴ + 9² .

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (265471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44244 + ... + 44249.

It is an arithmetic number, because the mean of its divisors is an integer number (88494).

2²⁶⁵⁴⁷⁹ is an apocalyptic number.

265479 is a deficient number, since it is larger than the sum of its proper divisors (88497).

265479 is an equidigital number, since it uses as much as digits as its factorization.

265479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88496.

The product of its digits is 15120, while the sum is 33.

The square root of 265479 is about 515.2465429287. The cubic root of 265479 is about 64.2702601299.

The spelling of 265479 in words is "two hundred sixty-five thousand, four hundred seventy-nine".