13980959 has 4 divisors (see below), whose sum is σ = 14322000. Its totient is φ = 13639920.

The previous prime is 13980947. The next prime is 13980971. The reversal of 13980959 is 95908931.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 95908931 = 191 ⋅502141.

It is an interprime number because it is at equal distance from previous prime (13980947) and next prime (13980971).

It is a cyclic number.

It is not a de Polignac number, because 13980959 - 2⁴ = 13980943 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13980359) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 170459 + ... + 170540.

It is an arithmetic number, because the mean of its divisors is an integer number (3580500).

Almost surely, 2^13980959 is an apocalyptic number.

13980959 is a deficient number, since it is larger than the sum of its proper divisors (341041).

13980959 is an equidigital number, since it uses as much as digits as its factorization.

13980959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341040.

The product of its (nonzero) digits is 87480, while the sum is 44.

The square root of 13980959 is about 3739.1120603694. The cubic root of 13980959 is about 240.9049113227.

The spelling of 13980959 in words is "thirteen million, nine hundred eighty thousand, nine hundred fifty-nine".