13933489 has 4 divisors (see below), whose sum is σ = 14753124. Its totient is φ = 13113856.

The previous prime is 13933483. The next prime is 13933519. The reversal of 13933489 is 98433931.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 98433931 = 61 ⋅1613671.

It can be written as a sum of positive squares in 2 ways, for example, as 12723489 + 1210000 = 3567^2 + 1100^2 .

It is a cyclic number.

It is not a de Polignac number, because 13933489 - 2¹³ = 13925297 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13933483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 409792 + ... + 409825.

It is an arithmetic number, because the mean of its divisors is an integer number (3688281).

Almost surely, 2^13933489 is an apocalyptic number.

It is an amenable number.

13933489 is a deficient number, since it is larger than the sum of its proper divisors (819635).

13933489 is an equidigital number, since it uses as much as digits as its factorization.

13933489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 819634.

The product of its digits is 69984, while the sum is 40.

The square root of 13933489 is about 3732.7588992594. The cubic root of 13933489 is about 240.6319514268.

The spelling of 13933489 in words is "thirteen million, nine hundred thirty-three thousand, four hundred eighty-nine".