8668189 has 4 divisors (see below), whose sum is σ = 8947840. Its totient is φ = 8388540.

The previous prime is 8668157. The next prime is 8668193. The reversal of 8668189 is 9818668.

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 8668189 - 2⁵ = 8668157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8668489) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139779 + ... + 139840.

It is an arithmetic number, because the mean of its divisors is an integer number (2236960).

Almost surely, 2^8668189 is an apocalyptic number.

It is an amenable number.

8668189 is a deficient number, since it is larger than the sum of its proper divisors (279651).

8668189 is a wasteful number, since it uses less digits than its factorization.

8668189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279650.

The product of its digits is 165888, while the sum is 46.

The square root of 8668189 is about 2944.1788328836. The cubic root of 8668189 is about 205.4200311229.

The spelling of 8668189 in words is "eight million, six hundred sixty-eight thousand, one hundred eighty-nine".