8222644 has 12 divisors (see below), whose sum is σ = 14563584. Its totient is φ = 4061624.

The previous prime is 8222623. The next prime is 8222681. The reversal of 8222644 is 4462228.

It is a super-2 number, since 2×8222644² = 135223748701472, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12052 + ... + 12715.

It is an arithmetic number, because the mean of its divisors is an integer number (1213632).

Almost surely, 2^8222644 is an apocalyptic number.

It is an amenable number.

8222644 is a deficient number, since it is larger than the sum of its proper divisors (6340940).

8222644 is a wasteful number, since it uses less digits than its factorization.

8222644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24854 (or 24852 counting only the distinct ones).

The product of its digits is 6144, while the sum is 28.

The square root of 8222644 is about 2867.5153007438. The cubic root of 8222644 is about 201.8384160208.

The spelling of 8222644 in words is "eight million, two hundred twenty-two thousand, six hundred forty-four".