8716638 has 32 divisors (see below), whose sum is σ = 20203776. Its totient is φ = 2455488.

The previous prime is 8716627. The next prime is 8716639. The reversal of 8716638 is 8366178.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 8716596 and 8716605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8716639) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1645 + ... + 4487.

It is an arithmetic number, because the mean of its divisors is an integer number (631368).

Almost surely, 2^8716638 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8716638, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10101888).

8716638 is an abundant number, since it is smaller than the sum of its proper divisors (11487138).

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

8716638 is a wasteful number, since it uses less digits than its factorization.

8716638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2928.

The product of its digits is 48384, while the sum is 39.

The square root of 8716638 is about 2952.3952987363. The cubic root of 8716638 is about 205.8020374907.

The spelling of 8716638 in words is "eight million, seven hundred sixteen thousand, six hundred thirty-eight".