8518213 has 16 divisors (see below), whose sum is σ = 9979200. Its totient is φ = 7188480.

The previous prime is 8518189. The next prime is 8518219. The reversal of 8518213 is 3128158.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8518213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8518219) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 10693 + ... + 11461.

It is an arithmetic number, because the mean of its divisors is an integer number (623700).

Almost surely, 2^8518213 is an apocalyptic number.

It is an amenable number.

8518213 is a deficient number, since it is larger than the sum of its proper divisors (1460987).

8518213 is a wasteful number, since it uses less digits than its factorization.

8518213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 852.

The product of its digits is 1920, while the sum is 28.

The square root of 8518213 is about 2918.5977797566. The cubic root of 8518213 is about 204.2284142171.

The spelling of 8518213 in words is "eight million, five hundred eighteen thousand, two hundred thirteen".