14917909 has 4 divisors (see below), whose sum is σ = 14934304. Its totient is φ = 14901516.

The previous prime is 14917901. The next prime is 14917927. The reversal of 14917909 is 90971941.

It is a happy number.

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: 90971941 = 3209 ⋅28349.

It is a cyclic number.

It is not a de Polignac number, because 14917909 - 2³ = 14917901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14917901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6747 + ... + 8680.

It is an arithmetic number, because the mean of its divisors is an integer number (3733576).

Almost surely, 2^14917909 is an apocalyptic number.

It is an amenable number.

14917909 is a deficient number, since it is larger than the sum of its proper divisors (16395).

14917909 is an equidigital number, since it uses as much as digits as its factorization.

14917909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16394.

The product of its (nonzero) digits is 20412, while the sum is 40.

The square root of 14917909 is about 3862.3709039915. The cubic root of 14917909 is about 246.1704868383.

The spelling of 14917909 in words is "fourteen million, nine hundred seventeen thousand, nine hundred nine".