13469909 has 4 divisors (see below), whose sum is σ = 13595904. Its totient is φ = 13343916.

The previous prime is 13469867. The next prime is 13469921. The reversal of 13469909 is 90996431.

13469909 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 90996431 = 37 ⋅2459363.

It is a cyclic number.

It is not a de Polignac number, because 13469909 - 2¹⁶ = 13404373 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13469969) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62837 + ... + 63050.

It is an arithmetic number, because the mean of its divisors is an integer number (3398976).

Almost surely, 2^13469909 is an apocalyptic number.

It is an amenable number.

13469909 is a deficient number, since it is larger than the sum of its proper divisors (125995).

13469909 is a wasteful number, since it uses less digits than its factorization.

13469909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125994.

The product of its (nonzero) digits is 52488, while the sum is 41.

The square root of 13469909 is about 3670.1374633656. The cubic root of 13469909 is about 237.9331132805.

The spelling of 13469909 in words is "thirteen million, four hundred sixty-nine thousand, nine hundred nine".