8218818 has 48 divisors (see below), whose sum is σ = 18532800. Its totient is φ = 2630880.

The previous prime is 8218817. The next prime is 8218831. The reversal of 8218818 is 8188128.

It is a happy number.

8218818 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8218817) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 75348 + ... + 75456.

It is an arithmetic number, because the mean of its divisors is an integer number (386100).

Almost surely, 2^8218818 is an apocalyptic number.

8218818 is an abundant number, since it is smaller than the sum of its proper divisors (10313982).

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

8218818 is a wasteful number, since it uses less digits than its factorization.

8218818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247 (or 244 counting only the distinct ones).

The product of its digits is 8192, while the sum is 36.

The square root of 8218818 is about 2866.8480950340. The cubic root of 8218818 is about 201.8071059951.

The spelling of 8218818 in words is "eight million, two hundred eighteen thousand, eight hundred eighteen".