8390189 has 4 divisors (see below), whose sum is σ = 8413920. Its totient is φ = 8366460.

The previous prime is 8390183. The next prime is 8390219. The reversal of 8390189 is 9810938.

8390189 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 a de Polignac number, because none of the positive numbers 2^k-8390189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8390183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11327 + ... + 12044.

It is an arithmetic number, because the mean of its divisors is an integer number (2103480).

Almost surely, 2^8390189 is an apocalyptic number.

It is an amenable number.

8390189 is a deficient number, since it is larger than the sum of its proper divisors (23731).

8390189 is a wasteful number, since it uses less digits than its factorization.

8390189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23730.

The product of its (nonzero) digits is 15552, while the sum is 38.

The square root of 8390189 is about 2896.5822964314. The cubic root of 8390189 is about 203.2000987481.

The spelling of 8390189 in words is "eight million, three hundred ninety thousand, one hundred eighty-nine".