8689648 has 40 divisors (see below), whose sum is σ = 18592560. Its totient is φ = 3901440.

The previous prime is 8689643. The next prime is 8689649. The reversal of 8689648 is 8469868.

8689648 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8689643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16818 + ... + 17326.

It is an arithmetic number, because the mean of its divisors is an integer number (464814).

Almost surely, 2^8689648 is an apocalyptic number.

8689648 is a gapful number since it is divisible by the number (88) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8689648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9296280).

8689648 is an abundant number, since it is smaller than the sum of its proper divisors (9902912).

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

8689648 is a wasteful number, since it uses less digits than its factorization.

8689648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 625 (or 619 counting only the distinct ones).

The product of its digits is 663552, while the sum is 49.

The square root of 8689648 is about 2947.8208900813. The cubic root of 8689648 is about 205.5894042898.

The spelling of 8689648 in words is "eight million, six hundred eighty-nine thousand, six hundred forty-eight".