822227 has 8 divisors (see below), whose sum is σ = 980736. Its totient is φ = 673992.

The previous prime is 822223. The next prime is 822229. The reversal of 822227 is 722228.

It is a happy number.

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

It is not a de Polignac number, because 822227 - 2² = 822223 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a plaindrome in base 12.

It is a nialpdrome in base 7.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 822227.

It is not an unprimeable number, because it can be changed into a prime (822221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2393 + ... + 2714.

It is an arithmetic number, because the mean of its divisors is an integer number (122592).

2⁸²²²²⁷ is an apocalyptic number.

822227 is a deficient number, since it is larger than the sum of its proper divisors (158509).

822227 is a wasteful number, since it uses less digits than its factorization.

822227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5137.

The product of its digits is 896, while the sum is 23.

The square root of 822227 is about 906.7673350976. The cubic root of 822227 is about 93.6836733823.

Subtracting from 822227 its reverse (722228), we obtain a palindrome (99999).

The spelling of 822227 in words is "eight hundred twenty-two thousand, two hundred twenty-seven".