8534209 has 2 divisors, whose sum is σ = 8534210. Its totient is φ = 8534208.

The previous prime is 8534203. The next prime is 8534243. The reversal of 8534209 is 9024358.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6517809 + 2016400 = 2553^2 + 1420^2 .

It is a cyclic number.

It is not a de Polignac number, because 8534209 - 2⁵ = 8534177 is a prime.

It is not a weakly prime, because it can be changed into another prime (8534203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4267104 + 4267105.

It is an arithmetic number, because the mean of its divisors is an integer number (4267105).

Almost surely, 2^8534209 is an apocalyptic number.

It is an amenable number.

8534209 is a deficient number, since it is larger than the sum of its proper divisors (1).

8534209 is an equidigital number, since it uses as much as digits as its factorization.

8534209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 8534209 is about 2921.3368515116. The cubic root of 8534209 is about 204.3561716453.

The spelling of 8534209 in words is "eight million, five hundred thirty-four thousand, two hundred nine".