13896397 has 2 divisors, whose sum is σ = 13896398. Its totient is φ = 13896396.

The previous prime is 13896383. The next prime is 13896409. The reversal of 13896397 is 79369831.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13097161 + 799236 = 3619^2 + 894^2 .

It is an emirp because it is prime and its reverse (79369831) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13896397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13896367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6948198 + 6948199.

It is an arithmetic number, because the mean of its divisors is an integer number (6948199).

Almost surely, 2^13896397 is an apocalyptic number.

It is an amenable number.

13896397 is a deficient number, since it is larger than the sum of its proper divisors (1).

13896397 is an equidigital number, since it uses as much as digits as its factorization.

13896397 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 244944, while the sum is 46.

The square root of 13896397 is about 3727.7871452109. The cubic root of 13896397 is about 240.4182348620.

The spelling of 13896397 in words is "thirteen million, eight hundred ninety-six thousand, three hundred ninety-seven".