8422229 has 8 divisors (see below), whose sum is σ = 8621592. Its totient is φ = 8225280.

The previous prime is 8422223. The next prime is 8422231. The reversal of 8422229 is 9222248.

8422229 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 168100 + 8254129 = 410^2 + 2873^2 .

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 8422229 - 2⁴ = 8422213 is a prime.

It is a d-powerful number, because it can be written as 8³ + 4 + 2⁸ + 2¹⁵ + 2²² + 2²² + 9² .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8422223) 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, 7739 + ... + 8759.

It is an arithmetic number, because the mean of its divisors is an integer number (1077699).

Almost surely, 2^8422229 is an apocalyptic number.

It is an amenable number.

8422229 is a deficient number, since it is larger than the sum of its proper divisors (199363).

8422229 is a wasteful number, since it uses less digits than its factorization.

8422229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1207.

The product of its digits is 4608, while the sum is 29.

The square root of 8422229 is about 2902.1076823578. The cubic root of 8422229 is about 203.4584267129.

The spelling of 8422229 in words is "eight million, four hundred twenty-two thousand, two hundred twenty-nine".