8356218 has 32 divisors (see below), whose sum is σ = 18144000. Its totient is φ = 2550336.

The previous prime is 8356217. The next prime is 8356241. The reversal of 8356218 is 8126538.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8356213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11263 + ... + 11981.

It is an arithmetic number, because the mean of its divisors is an integer number (567000).

Almost surely, 2^8356218 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8356218, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9072000).

8356218 is an abundant number, since it is smaller than the sum of its proper divisors (9787782).

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

8356218 is a wasteful number, since it uses less digits than its factorization.

8356218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 886.

The product of its digits is 11520, while the sum is 33.

The square root of 8356218 is about 2890.7123689499. The cubic root of 8356218 is about 202.9254824490.

The spelling of 8356218 in words is "eight million, three hundred fifty-six thousand, two hundred eighteen".