13968847 has 2 divisors, whose sum is σ = 13968848. Its totient is φ = 13968846.

The previous prime is 13968821. The next prime is 13968853. The reversal of 13968847 is 74886931.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13968847 - 2¹⁵ = 13936079 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13968797 and 13968806.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13968887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6984423 + 6984424.

It is an arithmetic number, because the mean of its divisors is an integer number (6984424).

Almost surely, 2^13968847 is an apocalyptic number.

13968847 is a deficient number, since it is larger than the sum of its proper divisors (1).

13968847 is an equidigital number, since it uses as much as digits as its factorization.

13968847 is an evil number, because the sum of its binary digits is even.

The product of its digits is 290304, while the sum is 46.

The square root of 13968847 is about 3737.4920735702. The cubic root of 13968847 is about 240.8353242200.

It can be divided in two parts, 139 and 68847, that added together give a palindrome (68986).

The spelling of 13968847 in words is "thirteen million, nine hundred sixty-eight thousand, eight hundred forty-seven".