8748209 has 2 divisors, whose sum is σ = 8748210. Its totient is φ = 8748208.

The previous prime is 8748203. The next prime is 8748263. The reversal of 8748209 is 9028478.

8748209 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7840000 + 908209 = 2800^2 + 953^2 .

It is a cyclic number.

It is not a de Polignac number, because 8748209 - 2²⁰ = 7699633 is a prime.

It is a Sophie Germain prime.

It is an Ulam number.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (8748203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4374104 + 4374105.

It is an arithmetic number, because the mean of its divisors is an integer number (4374105).

Almost surely, 2^8748209 is an apocalyptic number.

It is an amenable number.

8748209 is a deficient number, since it is larger than the sum of its proper divisors (1).

8748209 is an equidigital number, since it uses as much as digits as its factorization.

8748209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32256, while the sum is 38.

The square root of 8748209 is about 2957.7371418028. The cubic root of 8748209 is about 206.0502045606.

The spelling of 8748209 in words is "eight million, seven hundred forty-eight thousand, two hundred nine".