13859663 has 2 divisors, whose sum is σ = 13859664. Its totient is φ = 13859662.

The previous prime is 13859653. The next prime is 13859701. The reversal of 13859663 is 36695831.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13859663 - 2⁴ = 13859647 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13859663.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13859623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6929831 + 6929832.

It is an arithmetic number, because the mean of its divisors is an integer number (6929832).

Almost surely, 2^13859663 is an apocalyptic number.

13859663 is a deficient number, since it is larger than the sum of its proper divisors (1).

13859663 is an equidigital number, since it uses as much as digits as its factorization.

13859663 is an evil number, because the sum of its binary digits is even.

The product of its digits is 116640, while the sum is 41.

The square root of 13859663 is about 3722.8568331323. The cubic root of 13859663 is about 240.2062058808.

The spelling of 13859663 in words is "thirteen million, eight hundred fifty-nine thousand, six hundred sixty-three".