13885943 has 2 divisors, whose sum is σ = 13885944. Its totient is φ = 13885942.

The previous prime is 13885931. The next prime is 13885981. The reversal of 13885943 is 34958831.

It is a weak prime.

It is an emirp because it is prime and its reverse (34958831) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13885943 - 2⁸ = 13885687 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13885943.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13885643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6942971 + 6942972.

It is an arithmetic number, because the mean of its divisors is an integer number (6942972).

Almost surely, 2^13885943 is an apocalyptic number.

13885943 is a deficient number, since it is larger than the sum of its proper divisors (1).

13885943 is an equidigital number, since it uses as much as digits as its factorization.

13885943 is an evil number, because the sum of its binary digits is even.

The product of its digits is 103680, while the sum is 41.

The square root of 13885943 is about 3726.3847090712. The cubic root of 13885943 is about 240.3579323549.

The spelling of 13885943 in words is "thirteen million, eight hundred eighty-five thousand, nine hundred forty-three".