13007709 has 40 divisors (see below), whose sum is σ = 22848672. Its totient is φ = 7270560.

The previous prime is 13007707. The next prime is 13007711. The reversal of 13007709 is 90770031.

It is an interprime number because it is at equal distance from previous prime (13007707) and next prime (13007711).

It is not a de Polignac number, because 13007709 - 2¹ = 13007707 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13007707) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 11022 + ... + 12144.

Almost surely, 2^13007709 is an apocalyptic number.

It is an amenable number.

13007709 is a deficient number, since it is larger than the sum of its proper divisors (9840963).

13007709 is a wasteful number, since it uses less digits than its factorization.

13007709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1159 (or 1150 counting only the distinct ones).

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

The square root of 13007709 is about 3606.6201629781. The cubic root of 13007709 is about 235.1799376369.

It can be divided in two parts, 1300 and 7709, that added together give a palindrome (9009).

The spelling of 13007709 in words is "thirteen million, seven thousand, seven hundred nine".