8988209 has 2 divisors, whose sum is σ = 8988210. Its totient is φ = 8988208.

The previous prime is 8988191. The next prime is 8988227. The reversal of 8988209 is 9028898.

It is a balanced prime because it is at equal distance from previous prime (8988191) and next prime (8988227).

It can be written as a sum of positive squares in only one way, i.e., 7480225 + 1507984 = 2735^2 + 1228^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8988209 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8988209.

It is not a weakly prime, because it can be changed into another prime (8988229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4494104 + 4494105.

It is an arithmetic number, because the mean of its divisors is an integer number (4494105).

Almost surely, 2^8988209 is an apocalyptic number.

It is an amenable number.

8988209 is a deficient number, since it is larger than the sum of its proper divisors (1).

8988209 is an equidigital number, since it uses as much as digits as its factorization.

8988209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 82944, while the sum is 44.

The square root of 8988209 is about 2998.0341892647. The cubic root of 8988209 is about 207.9175045760.

The spelling of 8988209 in words is "eight million, nine hundred eighty-eight thousand, two hundred nine".