14909421 has 4 divisors (see below), whose sum is σ = 19879232. Its totient is φ = 9939612.

The previous prime is 14909417. The next prime is 14909429. The reversal of 14909421 is 12490941.

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 not a de Polignac number, because 14909421 - 2² = 14909417 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 (14909429) 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, 2484901 + ... + 2484906.

It is an arithmetic number, because the mean of its divisors is an integer number (4969808).

Almost surely, 2^14909421 is an apocalyptic number.

It is an amenable number.

14909421 is a deficient number, since it is larger than the sum of its proper divisors (4969811).

14909421 is an equidigital number, since it uses as much as digits as its factorization.

14909421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4969810.

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 14909421 is about 3861.2719406952. The cubic root of 14909421 is about 246.1237892412.

The spelling of 14909421 in words is "fourteen million, nine hundred nine thousand, four hundred twenty-one".