13989214 has 4 divisors (see below), whose sum is σ = 20983824. Its totient is φ = 6994606.

The previous prime is 13989193. The next prime is 13989229. The reversal of 13989214 is 41298931.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3497302 + ... + 3497305.

It is an arithmetic number, because the mean of its divisors is an integer number (5245956).

Almost surely, 2^13989214 is an apocalyptic number.

13989214 is a deficient number, since it is larger than the sum of its proper divisors (6994610).

13989214 is an equidigital number, since it uses as much as digits as its factorization.

13989214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6994609.

The product of its digits is 15552, while the sum is 37.

The square root of 13989214 is about 3740.2157691770. The cubic root of 13989214 is about 240.9523157668.

The spelling of 13989214 in words is "thirteen million, nine hundred eighty-nine thousand, two hundred fourteen".