8220822 has 24 divisors (see below), whose sum is σ = 16789416. Its totient is φ = 2683008.

The previous prime is 8220803. The next prime is 8220851. The reversal of 8220822 is 2280228.

It is a junction number, because it is equal to n+sod(n) for n = 8220792 and 8220801.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 59938 + ... + 60074.

It is an arithmetic number, because the mean of its divisors is an integer number (699559).

Almost surely, 2^8220822 is an apocalyptic number.

8220822 is an abundant number, since it is smaller than the sum of its proper divisors (8568594).

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

8220822 is a wasteful number, since it uses less digits than its factorization.

8220822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352 (or 215 counting only the distinct ones).

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

The square root of 8220822 is about 2867.1975864945. The cubic root of 8220822 is about 201.8235069169.

The spelling of 8220822 in words is "eight million, two hundred twenty thousand, eight hundred twenty-two".