8218573 has 8 divisors (see below), whose sum is σ = 9184896. Its totient is φ = 7288800.

The previous prime is 8218549. The next prime is 8218589. The reversal of 8218573 is 3758128.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8218573 - 2⁵ = 8218541 is a prime.

It is a Duffinian number.

8218573 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8218543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8661 + ... + 9562.

It is an arithmetic number, because the mean of its divisors is an integer number (1148112).

Almost surely, 2^8218573 is an apocalyptic number.

It is an amenable number.

8218573 is a deficient number, since it is larger than the sum of its proper divisors (966323).

8218573 is a wasteful number, since it uses less digits than its factorization.

8218573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18275.

The product of its digits is 13440, while the sum is 34.

The square root of 8218573 is about 2866.8053648617. The cubic root of 8218573 is about 201.8051007095.

The spelling of 8218573 in words is "eight million, two hundred eighteen thousand, five hundred seventy-three".