13980859 has 2 divisors, whose sum is σ = 13980860. Its totient is φ = 13980858.

The previous prime is 13980853. The next prime is 13980881. The reversal of 13980859 is 95808931.

It is a weak prime.

It is an emirp because it is prime and its reverse (95808931) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13980859 - 2⁷ = 13980731 is a prime.

It is not a weakly prime, because it can be changed into another prime (13980853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6990429 + 6990430.

It is an arithmetic number, because the mean of its divisors is an integer number (6990430).

Almost surely, 2^13980859 is an apocalyptic number.

13980859 is a deficient number, since it is larger than the sum of its proper divisors (1).

13980859 is an equidigital number, since it uses as much as digits as its factorization.

13980859 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 77760, while the sum is 43.

The square root of 13980859 is about 3739.0986881868. The cubic root of 13980859 is about 240.9043369570.

The spelling of 13980859 in words is "thirteen million, nine hundred eighty thousand, eight hundred fifty-nine".