13855879 has 2 divisors, whose sum is σ = 13855880. Its totient is φ = 13855878.

The previous prime is 13855873. The next prime is 13855903. The reversal of 13855879 is 97855831.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13855879 - 2²³ = 5467271 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13855873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6927939 + 6927940.

It is an arithmetic number, because the mean of its divisors is an integer number (6927940).

Almost surely, 2^13855879 is an apocalyptic number.

13855879 is a deficient number, since it is larger than the sum of its proper divisors (1).

13855879 is an equidigital number, since it uses as much as digits as its factorization.

13855879 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 302400, while the sum is 46.

The square root of 13855879 is about 3722.3485865781. The cubic root of 13855879 is about 240.1843433239.

The spelling of 13855879 in words is "thirteen million, eight hundred fifty-five thousand, eight hundred seventy-nine".