8821684422 has 24 divisors (see below), whose sum is σ = 19121730264. Its totient is φ = 2939318304.

The previous prime is 8821684379. The next prime is 8821684423. The reversal of 8821684422 is 2244861288.

8821684422 is a `hidden beast` number, since 8 + 8 + 216 + 8 + 4 + 422 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8821684423) 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, 59328 + ... + 145475.

It is an arithmetic number, because the mean of its divisors is an integer number (796738761).

Almost surely, 2^8821684422 is an apocalyptic number.

8821684422 is an abundant number, since it is smaller than the sum of its proper divisors (10300045842).

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

8821684422 is a wasteful number, since it uses less digits than its factorization.

8821684422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207204 (or 207201 counting only the distinct ones).

The product of its digits is 393216, while the sum is 45.

The square root of 8821684422 is about 93923.8224413807. The cubic root of 8821684422 is about 2066.2546276314.

The spelling of 8821684422 in words is "eight billion, eight hundred twenty-one million, six hundred eighty-four thousand, four hundred twenty-two".