14099721 has 8 divisors (see below), whose sum is σ = 18926400. Its totient is φ = 9336432.

The previous prime is 14099707. The next prime is 14099753. The reversal of 14099721 is 12799041.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 14099721 - 2⁵ = 14099689 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (14099221) 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 7 ways as a sum of consecutive naturals, for example, 15325 + ... + 16218.

It is an arithmetic number, because the mean of its divisors is an integer number (2365800).

Almost surely, 2^14099721 is an apocalyptic number.

It is an amenable number.

14099721 is a deficient number, since it is larger than the sum of its proper divisors (4826679).

14099721 is a wasteful number, since it uses less digits than its factorization.

14099721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31695.

The product of its (nonzero) digits is 4536, while the sum is 33.

The square root of 14099721 is about 3754.9595204210. The cubic root of 14099721 is about 241.5851154613.

The spelling of 14099721 in words is "fourteen million, ninety-nine thousand, seven hundred twenty-one".