8644648 has 16 divisors (see below), whose sum is σ = 16257780. Its totient is φ = 4309248.

The previous prime is 8644633. The next prime is 8644651. The reversal of 8644648 is 8464468.

8644648 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 8305924 + 338724 = 2882^2 + 582^2 .

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 8644648.

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, 1536 + ... + 4432.

Almost surely, 2^8644648 is an apocalyptic number.

It is an amenable number.

8644648 is a deficient number, since it is larger than the sum of its proper divisors (7613132).

8644648 is a wasteful number, since it uses less digits than its factorization.

8644648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3276 (or 3272 counting only the distinct ones).

The product of its digits is 147456, while the sum is 40.

The square root of 8644648 is about 2940.1782258904. The cubic root of 8644648 is about 205.2339031539.

The spelling of 8644648 in words is "eight million, six hundred forty-four thousand, six hundred forty-eight".