13988959 has 8 divisors (see below), whose sum is σ = 14976000. Its totient is φ = 13027032.

The previous prime is 13988957. The next prime is 13988963. The reversal of 13988959 is 95988931.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13988959 - 2¹ = 13988957 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 (13988957) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5119 + ... + 7360.

It is an arithmetic number, because the mean of its divisors is an integer number (1872000).

Almost surely, 2^13988959 is an apocalyptic number.

13988959 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

13988959 is a deficient number, since it is larger than the sum of its proper divisors (987041).

13988959 is a wasteful number, since it uses less digits than its factorization.

13988959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12557.

The product of its digits is 699840, while the sum is 52.

The square root of 13988959 is about 3740.1816800792. The cubic root of 13988959 is about 240.9508517052.

It can be divided in two parts, 139 and 88959, that added together give a palindrome (89098).

The spelling of 13988959 in words is "thirteen million, nine hundred eighty-eight thousand, nine hundred fifty-nine".