8218194 has 32 divisors (see below), whose sum is σ = 17262720. Its totient is φ = 2604672.

The previous prime is 8218187. The next prime is 8218201. The reversal of 8218194 is 4918128.

It is an interprime number because it is at equal distance from previous prime (8218187) and next prime (8218201).

It is an Ulam number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12379 + ... + 13025.

It is an arithmetic number, because the mean of its divisors is an integer number (539460).

Almost surely, 2^8218194 is an apocalyptic number.

8218194 is an abundant number, since it is smaller than the sum of its proper divisors (9044526).

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

8218194 is a wasteful number, since it uses less digits than its factorization.

8218194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 754.

The product of its digits is 4608, while the sum is 33.

The square root of 8218194 is about 2866.7392626467. The cubic root of 8218194 is about 201.8019985769.

The spelling of 8218194 in words is "eight million, two hundred eighteen thousand, one hundred ninety-four".