13479679 has 4 divisors (see below), whose sum is σ = 14065776. Its totient is φ = 12893584.

The previous prime is 13479677. The next prime is 13479709. The reversal of 13479679 is 97697431.

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 13479679 - 2¹ = 13479677 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 (13479677) 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, 293014 + ... + 293059.

It is an arithmetic number, because the mean of its divisors is an integer number (3516444).

Almost surely, 2^13479679 is an apocalyptic number.

13479679 is a deficient number, since it is larger than the sum of its proper divisors (586097).

13479679 is an equidigital number, since it uses as much as digits as its factorization.

13479679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 586096.

The product of its digits is 285768, while the sum is 46.

The square root of 13479679 is about 3671.4682349164. The cubic root of 13479679 is about 237.9906252928.

It can be divided in two parts, 1347 and 9679, that added together give a triangular number (11026 = T₁₄₈).

The spelling of 13479679 in words is "thirteen million, four hundred seventy-nine thousand, six hundred seventy-nine".