14857729 has 2 divisors, whose sum is σ = 14857730. Its totient is φ = 14857728.

The previous prime is 14857723. The next prime is 14857751. The reversal of 14857729 is 92775841.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14807104 + 50625 = 3848^2 + 225^2 .

It is a cyclic number.

It is not a de Polignac number, because 14857729 - 2³ = 14857721 is a prime.

It is a super-2 number, since 2×14857729² = 441504222074882, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (14857721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7428864 + 7428865.

It is an arithmetic number, because the mean of its divisors is an integer number (7428865).

Almost surely, 2^14857729 is an apocalyptic number.

It is an amenable number.

14857729 is a deficient number, since it is larger than the sum of its proper divisors (1).

14857729 is an equidigital number, since it uses as much as digits as its factorization.

14857729 is an evil number, because the sum of its binary digits is even.

The product of its digits is 141120, while the sum is 43.

The square root of 14857729 is about 3854.5724795365. The cubic root of 14857729 is about 245.8390171114.

The spelling of 14857729 in words is "fourteen million, eight hundred fifty-seven thousand, seven hundred twenty-nine".