8197018 has 16 divisors (see below), whose sum is σ = 13068000. Its totient is φ = 3845232.

The previous prime is 8197003. The next prime is 8197019. The reversal of 8197018 is 8107918.

It is a super-2 number, since 2×8197018² = 134382208184648, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8197019) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 3153 + ... + 5131.

It is an arithmetic number, because the mean of its divisors is an integer number (816750).

Almost surely, 2^8197018 is an apocalyptic number.

8197018 is a deficient number, since it is larger than the sum of its proper divisors (4870982).

8197018 is a wasteful number, since it uses less digits than its factorization.

8197018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2109.

The product of its (nonzero) digits is 4032, while the sum is 34.

The square root of 8197018 is about 2863.0434855238. The cubic root of 8197018 is about 201.6285202837.

The spelling of 8197018 in words is "eight million, one hundred ninety-seven thousand, eighteen".