13855679 has 2 divisors, whose sum is σ = 13855680. Its totient is φ = 13855678.

The previous prime is 13855661. The next prime is 13855703. The reversal of 13855679 is 97655831.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13855679 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13855379) 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, 6927839 + 6927840.

It is an arithmetic number, because the mean of its divisors is an integer number (6927840).

Almost surely, 2^13855679 is an apocalyptic number.

13855679 is a deficient number, since it is larger than the sum of its proper divisors (1).

13855679 is an equidigital number, since it uses as much as digits as its factorization.

13855679 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 226800, while the sum is 44.

The square root of 13855679 is about 3722.3217217215. The cubic root of 13855679 is about 240.1831876869.

The spelling of 13855679 in words is "thirteen million, eight hundred fifty-five thousand, six hundred seventy-nine".