14678909 has 4 divisors (see below), whose sum is σ = 16775904. Its totient is φ = 12581916.

The previous prime is 14678897. The next prime is 14678941. The reversal of 14678909 is 90987641.

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.

It is a cyclic number.

It is not a de Polignac number, because 14678909 - 2¹² = 14674813 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 14678909.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14678969) 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, 1048487 + ... + 1048500.

It is an arithmetic number, because the mean of its divisors is an integer number (4193976).

Almost surely, 2^14678909 is an apocalyptic number.

It is an amenable number.

14678909 is a deficient number, since it is larger than the sum of its proper divisors (2096995).

14678909 is an equidigital number, since it uses as much as digits as its factorization.

14678909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2096994.

The product of its (nonzero) digits is 108864, while the sum is 44.

The square root of 14678909 is about 3831.3064351472. The cubic root of 14678909 is about 244.8487696435.

The spelling of 14678909 in words is "fourteen million, six hundred seventy-eight thousand, nine hundred nine".