13989926 has 8 divisors (see below), whose sum is σ = 21431520. Its totient is φ = 6846088.

The previous prime is 13989917. The next prime is 13989931. The reversal of 13989926 is 62998931.

13989926 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74321 + ... + 74508.

It is an arithmetic number, because the mean of its divisors is an integer number (2678940).

Almost surely, 2^13989926 is an apocalyptic number.

13989926 is a deficient number, since it is larger than the sum of its proper divisors (7441594).

13989926 is a wasteful number, since it uses less digits than its factorization.

13989926 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148878.

The product of its digits is 209952, while the sum is 47.

The square root of 13989926 is about 3740.3109496404. The cubic root of 13989926 is about 240.9564035623.

The spelling of 13989926 in words is "thirteen million, nine hundred eighty-nine thousand, nine hundred twenty-six".