14976721 has 2 divisors, whose sum is σ = 14976722. Its totient is φ = 14976720.

The previous prime is 14976719. The next prime is 14976733. The reversal of 14976721 is 12767941.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14930496 + 46225 = 3864^2 + 215^2 .

It is a cyclic number.

It is not a de Polignac number, because 14976721 - 2¹ = 14976719 is a prime.

Together with 14976719, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (14976791) 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 as a sum of consecutive naturals, namely, 7488360 + 7488361.

It is an arithmetic number, because the mean of its divisors is an integer number (7488361).

Almost surely, 2^14976721 is an apocalyptic number.

It is an amenable number.

14976721 is a deficient number, since it is larger than the sum of its proper divisors (1).

14976721 is an equidigital number, since it uses as much as digits as its factorization.

14976721 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21168, while the sum is 37.

The square root of 14976721 is about 3869.9768733159. The cubic root of 14976721 is about 246.4935614867.

The spelling of 14976721 in words is "fourteen million, nine hundred seventy-six thousand, seven hundred twenty-one".