8636444 has 12 divisors (see below), whose sum is σ = 15153600. Its totient is φ = 4306848.

The previous prime is 8636423. The next prime is 8636449. The reversal of 8636444 is 4446368.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8636449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1004 + ... + 4275.

It is an arithmetic number, because the mean of its divisors is an integer number (1262800).

Almost surely, 2^8636444 is an apocalyptic number.

It is an amenable number.

8636444 is a deficient number, since it is larger than the sum of its proper divisors (6517156).

8636444 is a wasteful number, since it uses less digits than its factorization.

8636444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5692 (or 5690 counting only the distinct ones).

The product of its digits is 55296, while the sum is 35.

The square root of 8636444 is about 2938.7827412043. The cubic root of 8636444 is about 205.1689584675.

The spelling of 8636444 in words is "eight million, six hundred thirty-six thousand, four hundred forty-four".