13968697 has 2 divisors, whose sum is σ = 13968698. Its totient is φ = 13968696.

The previous prime is 13968683. The next prime is 13968709. The reversal of 13968697 is 79686931.

13968697 is digitally balanced in base 2 and base 3, because in such bases 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., 8856576 + 5112121 = 2976^2 + 2261^2 .

It is a cyclic number.

It is not a de Polignac number, because 13968697 - 2²³ = 5580089 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13968697.

It is not a weakly prime, because it can be changed into another prime (13968607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6984348 + 6984349.

It is an arithmetic number, because the mean of its divisors is an integer number (6984349).

Almost surely, 2^13968697 is an apocalyptic number.

It is an amenable number.

13968697 is a deficient number, since it is larger than the sum of its proper divisors (1).

13968697 is an equidigital number, since it uses as much as digits as its factorization.

13968697 is an evil number, because the sum of its binary digits is even.

The product of its digits is 489888, while the sum is 49.

The square root of 13968697 is about 3737.4720065841. The cubic root of 13968697 is about 240.8344621726.

The spelling of 13968697 in words is "thirteen million, nine hundred sixty-eight thousand, six hundred ninety-seven".