13507479 has 20 divisors (see below), whose sum is σ = 20727784. Its totient is φ = 8759664.

The previous prime is 13507477. The next prime is 13507493. The reversal of 13507479 is 97470531.

It is a happy number.

It is not a de Polignac number, because 13507479 - 2¹ = 13507477 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 (13507477) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 744 + ... + 5250.

Almost surely, 2^13507479 is an apocalyptic number.

13507479 is a deficient number, since it is larger than the sum of its proper divisors (7220305).

13507479 is an equidigital number, since it uses as much as digits as its factorization.

13507479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4556 (or 4547 counting only the distinct ones).

The product of its (nonzero) digits is 26460, while the sum is 36.

The square root of 13507479 is about 3675.2522362418. The cubic root of 13507479 is about 238.1541206869.

The spelling of 13507479 in words is "thirteen million, five hundred seven thousand, four hundred seventy-nine".