14338721 has 8 divisors (see below), whose sum is σ = 14970024. Its totient is φ = 13720320.

The previous prime is 14338703. The next prime is 14338747. The reversal of 14338721 is 12783341.

14338721 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1234321 + 13104400 = 1111^2 + 3620^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 14338721 - 2⁶ = 14338657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14338921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 920 + ... + 5433.

It is an arithmetic number, because the mean of its divisors is an integer number (1871253).

Almost surely, 2^14338721 is an apocalyptic number.

It is an amenable number.

14338721 is a deficient number, since it is larger than the sum of its proper divisors (631303).

14338721 is an equidigital number, since it uses as much as digits as its factorization.

14338721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6451.

The product of its digits is 4032, while the sum is 29.

The square root of 14338721 is about 3786.6503667490. The cubic root of 14338721 is about 242.9424861204.

The spelling of 14338721 in words is "fourteen million, three hundred thirty-eight thousand, seven hundred twenty-one".