13989212 has 6 divisors (see below), whose sum is σ = 24481128. Its totient is φ = 6994604.

The previous prime is 13989193. The next prime is 13989229. The reversal of 13989212 is 21298931.

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, 1748648 + ... + 1748655.

It is an arithmetic number, because the mean of its divisors is an integer number (4080188).

Almost surely, 2^13989212 is an apocalyptic number.

It is an amenable number.

13989212 is a deficient number, since it is larger than the sum of its proper divisors (10491916).

13989212 is a wasteful number, since it uses less digits than its factorization.

13989212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3497307 (or 3497305 counting only the distinct ones).

The product of its digits is 7776, while the sum is 35.

The square root of 13989212 is about 3740.2155018127. The cubic root of 13989212 is about 240.9523042841.

The spelling of 13989212 in words is "thirteen million, nine hundred eighty-nine thousand, two hundred twelve".