822822 has 64 divisors (see below), whose sum is σ = 2225664. Its totient is φ = 195840.

The previous prime is 822821. The next prime is 822823. The reversal of 822822 is 228228.

It is an interprime number because it is at equal distance from previous prime (822821) and next prime (822823).

It is a junction number, because it is equal to n+sod(n) for n = 822792 and 822801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (822821) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5938 + ... + 6074.

It is an arithmetic number, because the mean of its divisors is an integer number (34776).

2⁸²²⁸²² is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 822822, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1112832).

822822 is an abundant number, since it is smaller than the sum of its proper divisors (1402842).

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

822822 is a wasteful number, since it uses less digits than its factorization.

822822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173.

The product of its digits is 1024, while the sum is 24.

The square root of 822822 is about 907.0953643361. The cubic root of 822822 is about 93.7062658235.

The spelling of 822822 in words is "eight hundred twenty-two thousand, eight hundred twenty-two".