13729369 has 2 divisors, whose sum is σ = 13729370. Its totient is φ = 13729368.

The previous prime is 13729363. The next prime is 13729399. The reversal of 13729369 is 96392731.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12873744 + 855625 = 3588^2 + 925^2 .

It is an emirp because it is prime and its reverse (96392731) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13729369 - 2⁵ = 13729337 is a prime.

It is a super-2 number, since 2×13729369² = 376991146276322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13729363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6864684 + 6864685.

It is an arithmetic number, because the mean of its divisors is an integer number (6864685).

Almost surely, 2^13729369 is an apocalyptic number.

It is an amenable number.

13729369 is a deficient number, since it is larger than the sum of its proper divisors (1).

13729369 is an equidigital number, since it uses as much as digits as its factorization.

13729369 is an evil number, because the sum of its binary digits is even.

The product of its digits is 61236, while the sum is 40.

The square root of 13729369 is about 3705.3163157820. The cubic root of 13729369 is about 239.4511125324.

The spelling of 13729369 in words is "thirteen million, seven hundred twenty-nine thousand, three hundred sixty-nine".