13989069 has 24 divisors (see below), whose sum is σ = 20852832. Its totient is φ = 9033120.

The previous prime is 13989067. The next prime is 13989119. The reversal of 13989069 is 96098931.

It is not a de Polignac number, because 13989069 - 2¹ = 13989067 is a prime.

It is a super-2 number, since 2×13989069² = 391388102973522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13989067) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 45414 + ... + 45720.

It is an arithmetic number, because the mean of its divisors is an integer number (868868).

Almost surely, 2^13989069 is an apocalyptic number.

It is an amenable number.

13989069 is a deficient number, since it is larger than the sum of its proper divisors (6863763).

13989069 is a wasteful number, since it uses less digits than its factorization.

13989069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457 (or 454 counting only the distinct ones).

The product of its (nonzero) digits is 104976, while the sum is 45.

The square root of 13989069 is about 3740.1963852183. The cubic root of 13989069 is about 240.9514832634.

The spelling of 13989069 in words is "thirteen million, nine hundred eighty-nine thousand, sixty-nine".