14838721 has 2 divisors, whose sum is σ = 14838722. Its totient is φ = 14838720.

The previous prime is 14838713. The next prime is 14838727. The reversal of 14838721 is 12783841.

It is a happy number.

14838721 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., 8643600 + 6195121 = 2940^2 + 2489^2 .

It is a cyclic number.

It is not a de Polignac number, because 14838721 - 2³ = 14838713 is a prime.

It is not a weakly prime, because it can be changed into another prime (14838727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7419360 + 7419361.

It is an arithmetic number, because the mean of its divisors is an integer number (7419361).

Almost surely, 2^14838721 is an apocalyptic number.

It is an amenable number.

14838721 is a deficient number, since it is larger than the sum of its proper divisors (1).

14838721 is an equidigital number, since it uses as much as digits as its factorization.

14838721 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10752, while the sum is 34.

The square root of 14838721 is about 3852.1060473460. The cubic root of 14838721 is about 245.7341356231.

The spelling of 14838721 in words is "fourteen million, eight hundred thirty-eight thousand, seven hundred twenty-one".