13688479 has 8 divisors (see below), whose sum is σ = 15678080. Its totient is φ = 11707416.

The previous prime is 13688471. The next prime is 13688501. The reversal of 13688479 is 97488631.

It is a happy number.

13688479 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 13688479 - 2³ = 13688471 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 (13688471) 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, 1792 + ... + 5530.

It is an arithmetic number, because the mean of its divisors is an integer number (1959760).

Almost surely, 2^13688479 is an apocalyptic number.

13688479 is a deficient number, since it is larger than the sum of its proper divisors (1989601).

13688479 is an equidigital number, since it uses as much as digits as its factorization.

13688479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4269.

The product of its digits is 290304, while the sum is 46.

The square root of 13688479 is about 3699.7944537501. The cubic root of 13688479 is about 239.2131581055.

The spelling of 13688479 in words is "thirteen million, six hundred eighty-eight thousand, four hundred seventy-nine".