13989019 has 8 divisors (see below), whose sum is σ = 15289200. Its totient is φ = 12693600.

The previous prime is 13989007. The next prime is 13989047. The reversal of 13989019 is 91098931.

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

It is a cyclic number.

It is not a de Polignac number, because 13989019 - 2⁵ = 13988987 is a prime.

It is a super-2 number, since 2×13989019² = 391385305164722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13989119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8257 + ... + 9805.

It is an arithmetic number, because the mean of its divisors is an integer number (1911150).

Almost surely, 2^13989019 is an apocalyptic number.

13989019 is a deficient number, since it is larger than the sum of its proper divisors (1300181).

13989019 is a wasteful number, since it uses less digits than its factorization.

13989019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2381.

The product of its (nonzero) digits is 17496, while the sum is 40.

The square root of 13989019 is about 3740.1897010713. The cubic root of 13989019 is about 240.9511961919.

The spelling of 13989019 in words is "thirteen million, nine hundred eighty-nine thousand, nineteen".