14083721 has 4 divisors (see below), whose sum is σ = 14229012. Its totient is φ = 13938432.

The previous prime is 14083711. The next prime is 14083723. The reversal of 14083721 is 12738041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12738041 = 59 ⋅215899.

It can be written as a sum of positive squares in 2 ways, for example, as 5017600 + 9066121 = 2240^2 + 3011^2 .

It is a cyclic number.

It is not a de Polignac number, because 14083721 - 2²² = 9889417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14083723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72500 + ... + 72693.

It is an arithmetic number, because the mean of its divisors is an integer number (3557253).

Almost surely, 2^14083721 is an apocalyptic number.

It is an amenable number.

14083721 is a deficient number, since it is larger than the sum of its proper divisors (145291).

14083721 is an equidigital number, since it uses as much as digits as its factorization.

14083721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145290.

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 14083721 is about 3752.8284000204. The cubic root of 14083721 is about 241.4936993528.

The spelling of 14083721 in words is "fourteen million, eighty-three thousand, seven hundred twenty-one".