8218716 has 96 divisors (see below), whose sum is σ = 22982400. Its totient is φ = 2257920.

The previous prime is 8218703. The next prime is 8218723. The reversal of 8218716 is 6178128.

It is a happy number.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 72676 + ... + 72788.

It is an arithmetic number, because the mean of its divisors is an integer number (239400).

Almost surely, 2^8218716 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 8218716, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11491200).

8218716 is an abundant number, since it is smaller than the sum of its proper divisors (14763684).

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

8218716 is a wasteful number, since it uses less digits than its factorization.

8218716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179 (or 177 counting only the distinct ones).

The product of its digits is 5376, while the sum is 33.

The square root of 8218716 is about 2866.8303054070. The cubic root of 8218716 is about 201.8062711463.

The spelling of 8218716 in words is "eight million, two hundred eighteen thousand, seven hundred sixteen".