8625644 has 48 divisors (see below), whose sum is σ = 16873920. Its totient is φ = 3843840.

The previous prime is 8625641. The next prime is 8625649. The reversal of 8625644 is 4465268.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (8625641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 141374 + ... + 141434.

It is an arithmetic number, because the mean of its divisors is an integer number (351540).

Almost surely, 2^8625644 is an apocalyptic number.

It is an amenable number.

8625644 is a deficient number, since it is larger than the sum of its proper divisors (8248276).

8625644 is a wasteful number, since it uses less digits than its factorization.

8625644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170 (or 168 counting only the distinct ones).

The product of its digits is 46080, while the sum is 35.

The square root of 8625644 is about 2936.9446709123. The cubic root of 8625644 is about 205.0834005290.

The spelling of 8625644 in words is "eight million, six hundred twenty-five thousand, six hundred forty-four".