13688273 has 2 divisors, whose sum is σ = 13688274. Its totient is φ = 13688272.

The previous prime is 13688249. The next prime is 13688293. The reversal of 13688273 is 37288631.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12229009 + 1459264 = 3497^2 + 1208^2 .

It is a cyclic number.

It is not a de Polignac number, because 13688273 - 2¹⁰ = 13687249 is a prime.

It is not a weakly prime, because it can be changed into another prime (13688293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6844136 + 6844137.

It is an arithmetic number, because the mean of its divisors is an integer number (6844137).

Almost surely, 2^13688273 is an apocalyptic number.

It is an amenable number.

13688273 is a deficient number, since it is larger than the sum of its proper divisors (1).

13688273 is an equidigital number, since it uses as much as digits as its factorization.

13688273 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48384, while the sum is 38.

The square root of 13688273 is about 3699.7666142610. The cubic root of 13688273 is about 239.2119581144.

The spelling of 13688273 in words is "thirteen million, six hundred eighty-eight thousand, two hundred seventy-three".