13707009 has 8 divisors (see below), whose sum is σ = 20306720. Its totient is φ = 9137988.

The previous prime is 13706993. The next prime is 13707017. The reversal of 13707009 is 90070731.

It is not a de Polignac number, because 13707009 - 2⁴ = 13706993 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 507667 = 13707009 / (1 + 3 + 7 + 0 + 7 + 0 + 0 + 9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13707509) 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, 253807 + ... + 253860.

It is an arithmetic number, because the mean of its divisors is an integer number (2538340).

Almost surely, 2^13707009 is an apocalyptic number.

It is an amenable number.

13707009 is a deficient number, since it is larger than the sum of its proper divisors (6599711).

13707009 is an equidigital number, since it uses as much as digits as its factorization.

13707009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507676 (or 507670 counting only the distinct ones).

The product of its (nonzero) digits is 1323, while the sum is 27.

The square root of 13707009 is about 3702.2978000156. The cubic root of 13707009 is about 239.3210498390.

The spelling of 13707009 in words is "thirteen million, seven hundred seven thousand, nine".