8266209 has 8 divisors (see below), whose sum is σ = 12596160. Its totient is φ = 4723536.

The previous prime is 8266187. The next prime is 8266211. The reversal of 8266209 is 9026628.

8266209 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 8266209 - 2⁷ = 8266081 is a prime.

It is a super-2 number, since 2×8266209² = 136660422463362, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 8266209.

It is not an unprimeable number, because it can be changed into a prime (8266229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 196794 + ... + 196835.

It is an arithmetic number, because the mean of its divisors is an integer number (1574520).

Almost surely, 2^8266209 is an apocalyptic number.

It is an amenable number.

8266209 is a deficient number, since it is larger than the sum of its proper divisors (4329951).

8266209 is a wasteful number, since it uses less digits than its factorization.

8266209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393639.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 8266209 is about 2875.1015634235. The cubic root of 8266209 is about 202.1942467014.

The spelling of 8266209 in words is "eight million, two hundred sixty-six thousand, two hundred nine".