13988339 has 4 divisors (see below), whose sum is σ = 14329560. Its totient is φ = 13647120.

The previous prime is 13988321. The next prime is 13988341. The reversal of 13988339 is 93388931.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13988339 - 2¹⁶ = 13922803 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13988339.

It is not an unprimeable number, because it can be changed into a prime (13988539) 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, 170549 + ... + 170630.

It is an arithmetic number, because the mean of its divisors is an integer number (3582390).

Almost surely, 2^13988339 is an apocalyptic number.

13988339 is a deficient number, since it is larger than the sum of its proper divisors (341221).

13988339 is an equidigital number, since it uses as much as digits as its factorization.

13988339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341220.

The product of its digits is 139968, while the sum is 44.

The square root of 13988339 is about 3740.0987954866. The cubic root of 13988339 is about 240.9472919518.

The spelling of 13988339 in words is "thirteen million, nine hundred eighty-eight thousand, three hundred thirty-nine".