8189644 has 12 divisors (see below), whose sum is σ = 14359744. Its totient is φ = 4086864.

The previous prime is 8189641. The next prime is 8189663. The reversal of 8189644 is 4469818.

It is a junction number, because it is equal to n+sod(n) for n = 8189597 and 8189606.

It is not an unprimeable number, because it can be changed into a prime (8189641) 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, 742 + ... + 4114.

Almost surely, 2^8189644 is an apocalyptic number.

It is an amenable number.

8189644 is a deficient number, since it is larger than the sum of its proper divisors (6170100).

8189644 is a wasteful number, since it uses less digits than its factorization.

8189644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3984 (or 3982 counting only the distinct ones).

The product of its digits is 55296, while the sum is 40.

The square root of 8189644 is about 2861.7554053413. The cubic root of 8189644 is about 201.5680407787.

The spelling of 8189644 in words is "eight million, one hundred eighty-nine thousand, six hundred forty-four".