8017218 has 60 divisors (see below), whose sum is σ = 19794390. Its totient is φ = 2423520.

The previous prime is 8017201. The next prime is 8017223. The reversal of 8017218 is 8127108.

It can be written as a sum of positive squares in only one way, i.e., 5184729 + 2832489 = 2277^2 + 1683^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 8017191 and 8017200.

It is an unprimeable number.

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 29 ways as a sum of consecutive naturals, for example, 19398 + ... + 19806.

Almost surely, 2^8017218 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8017218, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9897195).

8017218 is an abundant number, since it is smaller than the sum of its proper divisors (11777172).

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

8017218 is a wasteful number, since it uses less digits than its factorization.

8017218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 445 (or 425 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 27.

The square root of 8017218 is about 2831.4692299229. The cubic root of 8017218 is about 200.1433805189.

The spelling of 8017218 in words is "eight million, seventeen thousand, two hundred eighteen".