13938497 has 2 divisors, whose sum is σ = 13938498. Its totient is φ = 13938496.

The previous prime is 13938451. The next prime is 13938511. The reversal of 13938497 is 79483931.

It is a happy number.

13938497 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., 13075456 + 863041 = 3616^2 + 929^2 .

It is an emirp because it is prime and its reverse (79483931) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13938497 - 2¹⁸ = 13676353 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13938697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6969248 + 6969249.

It is an arithmetic number, because the mean of its divisors is an integer number (6969249).

Almost surely, 2^13938497 is an apocalyptic number.

It is an amenable number.

13938497 is a deficient number, since it is larger than the sum of its proper divisors (1).

13938497 is an equidigital number, since it uses as much as digits as its factorization.

13938497 is an evil number, because the sum of its binary digits is even.

The product of its digits is 163296, while the sum is 44.

The square root of 13938497 is about 3733.4296564955. The cubic root of 13938497 is about 240.6607774316.

The spelling of 13938497 in words is "thirteen million, nine hundred thirty-eight thousand, four hundred ninety-seven".