14719721 has 2 divisors, whose sum is σ = 14719722. Its totient is φ = 14719720.

The previous prime is 14719711. The next prime is 14719723. The reversal of 14719721 is 12791741.

14719721 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13980121 + 739600 = 3739^2 + 860^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14719721 is a prime.

Together with 14719723, 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 (14719723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7359860 + 7359861.

It is an arithmetic number, because the mean of its divisors is an integer number (7359861).

Almost surely, 2^14719721 is an apocalyptic number.

It is an amenable number.

14719721 is a deficient number, since it is larger than the sum of its proper divisors (1).

14719721 is an equidigital number, since it uses as much as digits as its factorization.

14719721 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3528, while the sum is 32.

The square root of 14719721 is about 3836.6288587769. The cubic root of 14719721 is about 245.0754786187.

The spelling of 14719721 in words is "fourteen million, seven hundred nineteen thousand, seven hundred twenty-one".