8607222 has 80 divisors (see below), whose sum is σ = 21425712. Its totient is φ = 2566080.

The previous prime is 8607217. The next prime is 8607223. The reversal of 8607222 is 2227068.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8607223) 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 39 ways as a sum of consecutive naturals, for example, 128433 + ... + 128499.

Almost surely, 2^8607222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8607222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10712856).

8607222 is an abundant number, since it is smaller than the sum of its proper divisors (12818490).

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

8607222 is a wasteful number, since it uses less digits than its factorization.

8607222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155 (or 146 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 8607222 is about 2933.8067421015. The cubic root of 8607222 is about 204.9372959127.

The spelling of 8607222 in words is "eight million, six hundred seven thousand, two hundred twenty-two".