13479 has 4 divisors (see below), whose sum is σ = 17976. Its totient is φ = 8984.

The previous prime is 13477. The next prime is 13487. The reversal of 13479 is 97431.

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 13479 - 2¹ = 13477 is a prime.

It is a super-3 number, since 3×13479³ = 7346733303717, which contains 333 as substring.

It is an Ulam number.

It is a D-number.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13477) 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, 2244 + ... + 2249.

It is an arithmetic number, because the mean of its divisors is an integer number (4494).

2¹³⁴⁷⁹ is an apocalyptic number.

13479 is a deficient number, since it is larger than the sum of its proper divisors (4497).

13479 is an equidigital number, since it uses as much as digits as its factorization.

13479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4496.

The product of its digits is 756, while the sum is 24.

The square root of 13479 is about 116.0990956037. The cubic root of 13479 is about 23.7986629195.

The spelling of 13479 in words is "thirteen thousand, four hundred seventy-nine".