8389189 has 4 divisors (see below), whose sum is σ = 8659840. Its totient is φ = 8118540.

The previous prime is 8389187. The next prime is 8389201. The reversal of 8389189 is 9819838.

8389189 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8389189 - 2¹ = 8389187 is a prime.

It is an Ulam number.

It is a Duffinian number.

8389189 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8389187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135279 + ... + 135340.

It is an arithmetic number, because the mean of its divisors is an integer number (2164960).

Almost surely, 2^8389189 is an apocalyptic number.

It is an amenable number.

8389189 is a deficient number, since it is larger than the sum of its proper divisors (270651).

8389189 is a wasteful number, since it uses less digits than its factorization.

8389189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270650.

The product of its digits is 124416, while the sum is 46.

The square root of 8389189 is about 2896.4096740620. The cubic root of 8389189 is about 203.1920255023.

The spelling of 8389189 in words is "eight million, three hundred eighty-nine thousand, one hundred eighty-nine".