14408729 has 2 divisors, whose sum is σ = 14408730. Its totient is φ = 14408728.

The previous prime is 14408689. The next prime is 14408759. The reversal of 14408729 is 92780441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7507600 + 6901129 = 2740^2 + 2627^2 .

It is a cyclic number.

It is not a de Polignac number, because 14408729 - 2⁸ = 14408473 is a prime.

It is a super-2 number, since 2×14408729² = 415222942790882, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (14408759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7204364 + 7204365.

It is an arithmetic number, because the mean of its divisors is an integer number (7204365).

Almost surely, 2^14408729 is an apocalyptic number.

It is an amenable number.

14408729 is a deficient number, since it is larger than the sum of its proper divisors (1).

14408729 is an equidigital number, since it uses as much as digits as its factorization.

14408729 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 14408729 is about 3795.8831646930. The cubic root of 14408729 is about 243.3372287277.

The spelling of 14408729 in words is "fourteen million, four hundred eight thousand, seven hundred twenty-nine".