14073721 has 4 divisors (see below), whose sum is σ = 14527744. Its totient is φ = 13619700.

The previous prime is 14073713. The next prime is 14073749. The reversal of 14073721 is 12737041.

It is a happy number.

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 14073721 - 2³ = 14073713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14073751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 226965 + ... + 227026.

It is an arithmetic number, because the mean of its divisors is an integer number (3631936).

Almost surely, 2^14073721 is an apocalyptic number.

It is an amenable number.

14073721 is a deficient number, since it is larger than the sum of its proper divisors (454023).

14073721 is an equidigital number, since it uses as much as digits as its factorization.

14073721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 454022.

The product of its (nonzero) digits is 1176, while the sum is 25.

The square root of 14073721 is about 3751.4958349970. The cubic root of 14073721 is about 241.4365291209.

The spelling of 14073721 in words is "fourteen million, seventy-three thousand, seven hundred twenty-one".