8518218 has 16 divisors (see below), whose sum is σ = 17127936. Its totient is φ = 2824160.

The previous prime is 8518189. The next prime is 8518219. The reversal of 8518218 is 8128158.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (8518219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2571 + ... + 4862.

It is an arithmetic number, because the mean of its divisors is an integer number (1070496).

Almost surely, 2^8518218 is an apocalyptic number.

8518218 is an abundant number, since it is smaller than the sum of its proper divisors (8609718).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8518218 is a wasteful number, since it uses less digits than its factorization.

8518218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7629.

The product of its digits is 5120, while the sum is 33.

The square root of 8518218 is about 2918.5986363322. The cubic root of 8518218 is about 204.2284541762.

The spelling of 8518218 in words is "eight million, five hundred eighteen thousand, two hundred eighteen".