13289409 has 12 divisors (see below), whose sum is σ = 21938176. Its totient is φ = 7593912.

The previous prime is 13289387. The next prime is 13289447. The reversal of 13289409 is 90498231.

13289409 is digitally balanced in base 2 and base 8, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13289409 - 2⁷ = 13289281 is a prime.

It is a Duffinian number.

13289409 is strictly pandigital in base 8.

It is not an unprimeable number, because it can be changed into a prime (13289449) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 105409 + ... + 105534.

Almost surely, 2^13289409 is an apocalyptic number.

It is an amenable number.

13289409 is a deficient number, since it is larger than the sum of its proper divisors (8648767).

13289409 is a wasteful number, since it uses less digits than its factorization.

13289409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210956 (or 210953 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 13289409 is about 3645.4641679764. The cubic root of 13289409 is about 236.8655435596.

The spelling of 13289409 in words is "thirteen million, two hundred eighty-nine thousand, four hundred nine".