13299909 has 16 divisors (see below), whose sum is σ = 20815488. Its totient is φ = 7394112.

The previous prime is 13299907. The next prime is 13299931. The reversal of 13299909 is 90999231.

It is a happy number.

13299909 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13299909 - 2¹ = 13299907 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13299907) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7782 + ... + 9335.

It is an arithmetic number, because the mean of its divisors is an integer number (1300968).

Almost surely, 2^13299909 is an apocalyptic number.

It is an amenable number.

13299909 is a deficient number, since it is larger than the sum of its proper divisors (7515579).

13299909 is a wasteful number, since it uses less digits than its factorization.

13299909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17164.

The product of its (nonzero) digits is 39366, while the sum is 42.

The square root of 13299909 is about 3646.9040294474. The cubic root of 13299909 is about 236.9279098513.

The spelling of 13299909 in words is "thirteen million, two hundred ninety-nine thousand, nine hundred nine".