13989171 has 16 divisors (see below), whose sum is σ = 21457664. Its totient is φ = 7941024.

The previous prime is 13989133. The next prime is 13989179. The reversal of 13989171 is 17198931.

It is not a de Polignac number, because 13989171 - 2¹⁴ = 13972787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13989179) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1176 + ... + 5418.

It is an arithmetic number, because the mean of its divisors is an integer number (1341104).

Almost surely, 2^13989171 is an apocalyptic number.

13989171 is a deficient number, since it is larger than the sum of its proper divisors (7468493).

13989171 is a wasteful number, since it uses less digits than its factorization.

13989171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4410.

The product of its digits is 13608, while the sum is 39.

The square root of 13989171 is about 3740.2100208411. The cubic root of 13989171 is about 240.9520688871.

The spelling of 13989171 in words is "thirteen million, nine hundred eighty-nine thousand, one hundred seventy-one".