14628921 has 4 divisors (see below), whose sum is σ = 19505232. Its totient is φ = 9752612.

The previous prime is 14628919. The next prime is 14628937. The reversal of 14628921 is 12982641.

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 14628921 - 2¹ = 14628919 is a prime.

It is not an unprimeable number, because it can be changed into a prime (14628961) 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, 2438151 + ... + 2438156.

It is an arithmetic number, because the mean of its divisors is an integer number (4876308).

Almost surely, 2^14628921 is an apocalyptic number.

It is an amenable number.

14628921 is a deficient number, since it is larger than the sum of its proper divisors (4876311).

14628921 is an equidigital number, since it uses as much as digits as its factorization.

14628921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4876310.

The product of its digits is 6912, while the sum is 33.

The square root of 14628921 is about 3824.7772484159. Note that the first 3 decimals coincide. The cubic root of 14628921 is about 244.5705150804.

The spelling of 14628921 in words is "fourteen million, six hundred twenty-eight thousand, nine hundred twenty-one".