8789189 has 2 divisors, whose sum is σ = 8789190. Its totient is φ = 8789188.

The previous prime is 8789113. The next prime is 8789201. The reversal of 8789189 is 9819878.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6980164 + 1809025 = 2642^2 + 1345^2 .

It is a cyclic number.

It is not a de Polignac number, because 8789189 - 2¹² = 8785093 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8789689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4394594 + 4394595.

It is an arithmetic number, because the mean of its divisors is an integer number (4394595).

Almost surely, 2^8789189 is an apocalyptic number.

It is an amenable number.

8789189 is a deficient number, since it is larger than the sum of its proper divisors (1).

8789189 is an equidigital number, since it uses as much as digits as its factorization.

8789189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 290304, while the sum is 50.

The square root of 8789189 is about 2964.6566411644. The cubic root of 8789189 is about 206.3714431402.

The spelling of 8789189 in words is "eight million, seven hundred eighty-nine thousand, one hundred eighty-nine".