8784216 has 96 divisors (see below), whose sum is σ = 28173600. Its totient is φ = 2419200.

The previous prime is 8784203. The next prime is 8784221. The reversal of 8784216 is 6124878.

It is a Harshad number since it is a multiple of its sum of digits (36).

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 polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14316 + ... + 14916.

It is an arithmetic number, because the mean of its divisors is an integer number (293475).

Almost surely, 2^8784216 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 8784216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14086800).

8784216 is an abundant number, since it is smaller than the sum of its proper divisors (19389384).

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

8784216 is a wasteful number, since it uses less digits than its factorization.

8784216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 649 (or 642 counting only the distinct ones).

The product of its digits is 21504, while the sum is 36.

The square root of 8784216 is about 2963.8178081657. The cubic root of 8784216 is about 206.3325135412.

The spelling of 8784216 in words is "eight million, seven hundred eighty-four thousand, two hundred sixteen".