8821422 has 24 divisors (see below), whose sum is σ = 19730880. Its totient is φ = 2845440.

The previous prime is 8821399. The next prime is 8821427. The reversal of 8821422 is 2241288.

8821422 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×8821422² = 155634972204168, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8821427) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7347 + ... + 8462.

It is an arithmetic number, because the mean of its divisors is an integer number (822120).

Almost surely, 2^8821422 is an apocalyptic number.

8821422 is an abundant number, since it is smaller than the sum of its proper divisors (10909458).

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

8821422 is a wasteful number, since it uses less digits than its factorization.

8821422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15848 (or 15845 counting only the distinct ones).

The product of its digits is 2048, while the sum is 27.

The square root of 8821422 is about 2970.0878774878. The cubic root of 8821422 is about 206.6234138874.

It can be divided in two parts, 882 and 1422, that added together give a square (2304 = 48²).

The spelling of 8821422 in words is "eight million, eight hundred twenty-one thousand, four hundred twenty-two".