8918218 has 8 divisors (see below), whose sum is σ = 13479840. Its totient is φ = 4424940.

The previous prime is 8918209. The next prime is 8918237. The reversal of 8918218 is 8128198.

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

It is a super-2 number, since 2×8918218² = 159069224591048, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16758 + ... + 17281.

It is an arithmetic number, because the mean of its divisors is an integer number (1684980).

Almost surely, 2^8918218 is an apocalyptic number.

8918218 is a deficient number, since it is larger than the sum of its proper divisors (4561622).

8918218 is a wasteful number, since it uses less digits than its factorization.

8918218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34172.

The product of its digits is 9216, while the sum is 37.

The square root of 8918218 is about 2986.3385608467. The cubic root of 8918218 is about 207.3764145292.

The spelling of 8918218 in words is "eight million, nine hundred eighteen thousand, two hundred eighteen".