8538218 has 12 divisors (see below), whose sum is σ = 13868838. Its totient is φ = 3940560.

The previous prime is 8538193. The next prime is 8538223. The reversal of 8538218 is 8128358.

It can be written as a sum of positive squares in 3 ways, for example, as 2550409 + 5987809 = 1597^2 + 2447^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12293 + ... + 12968.

Almost surely, 2^8538218 is an apocalyptic number.

8538218 is a deficient number, since it is larger than the sum of its proper divisors (5330620).

8538218 is a wasteful number, since it uses less digits than its factorization.

8538218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25289 (or 25276 counting only the distinct ones).

The product of its digits is 15360, while the sum is 35.

The square root of 8538218 is about 2922.0229294104. The cubic root of 8538218 is about 204.3881658481.

The spelling of 8538218 in words is "eight million, five hundred thirty-eight thousand, two hundred eighteen".