13868863 has 2 divisors, whose sum is σ = 13868864. Its totient is φ = 13868862.

The previous prime is 13868861. The next prime is 13868887. The reversal of 13868863 is 36886831.

It is a weak prime.

It is an emirp because it is prime and its reverse (36886831) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13868863 - 2¹ = 13868861 is a prime.

Together with 13868861, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13868861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6934431 + 6934432.

It is an arithmetic number, because the mean of its divisors is an integer number (6934432).

Almost surely, 2^13868863 is an apocalyptic number.

13868863 is a deficient number, since it is larger than the sum of its proper divisors (1).

13868863 is an equidigital number, since it uses as much as digits as its factorization.

13868863 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 165888, while the sum is 43.

The square root of 13868863 is about 3724.0922383851. The cubic root of 13868863 is about 240.2593434956.

The spelling of 13868863 in words is "thirteen million, eight hundred sixty-eight thousand, eight hundred sixty-three".