8009189 has 4 divisors (see below), whose sum is σ = 8014956. Its totient is φ = 8003424.

The previous prime is 8009179. The next prime is 8009219. The reversal of 8009189 is 9819008.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 2696164 + 5313025 = 1642^2 + 2305^2 .

It is a cyclic number.

It is not a de Polignac number, because 8009189 - 2⁸ = 8008933 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 (8009119) 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, 617 + ... + 4049.

It is an arithmetic number, because the mean of its divisors is an integer number (2003739).

Almost surely, 2^8009189 is an apocalyptic number.

It is an amenable number.

8009189 is a deficient number, since it is larger than the sum of its proper divisors (5767).

8009189 is a wasteful number, since it uses less digits than its factorization.

8009189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5766.

The product of its (nonzero) digits is 5184, while the sum is 35.

The square root of 8009189 is about 2830.0510596101. The cubic root of 8009189 is about 200.0765457000.

The spelling of 8009189 in words is "eight million, nine thousand, one hundred eighty-nine".