8644422 has 8 divisors (see below), whose sum is σ = 17288856. Its totient is φ = 2881472.

The previous prime is 8644397. The next prime is 8644439. The reversal of 8644422 is 2244468.

8644422 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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

8644422 is an admirable number.

It is a nialpdrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 8644422.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 720363 + ... + 720374.

It is an arithmetic number, because the mean of its divisors is an integer number (2161107).

Almost surely, 2^8644422 is an apocalyptic number.

8644422 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

8644422 is a wasteful number, since it uses less digits than its factorization.

8644422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1440742.

The product of its digits is 12288, while the sum is 30.

The square root of 8644422 is about 2940.1397925949. The cubic root of 8644422 is about 205.2321146382.

The spelling of 8644422 in words is "eight million, six hundred forty-four thousand, four hundred twenty-two".