8500222 has 4 divisors (see below), whose sum is σ = 12750336. Its totient is φ = 4250110.

The previous prime is 8500213. The next prime is 8500229. The reversal of 8500222 is 2220058.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 8500222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8500229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2125054 + ... + 2125057.

It is an arithmetic number, because the mean of its divisors is an integer number (3187584).

Almost surely, 2^8500222 is an apocalyptic number.

8500222 is a deficient number, since it is larger than the sum of its proper divisors (4250114).

8500222 is a wasteful number, since it uses less digits than its factorization.

8500222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4250113.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 8500222 is about 2915.5140198600. The cubic root of 8500222 is about 204.0845318009.

The spelling of 8500222 in words is "eight million, five hundred thousand, two hundred twenty-two".