8216688 has 40 divisors (see below), whose sum is σ = 21534336. Its totient is φ = 2699200.

The previous prime is 8216671. The next prime is 8216693. The reversal of 8216688 is 8866128.

8216688 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

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, 2203 + ... + 4613.

Almost surely, 2^8216688 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8216688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10767168).

8216688 is an abundant number, since it is smaller than the sum of its proper divisors (13317648).

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

8216688 is a wasteful number, since it uses less digits than its factorization.

8216688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2493 (or 2487 counting only the distinct ones).

The product of its digits is 36864, while the sum is 39.

The square root of 8216688 is about 2866.4765828452. The cubic root of 8216688 is about 201.7896709546.

The spelling of 8216688 in words is "eight million, two hundred sixteen thousand, six hundred eighty-eight".