8812216 has 32 divisors (see below), whose sum is σ = 19398240. Its totient is φ = 3673728.

The previous prime is 8812211. The next prime is 8812231. The reversal of 8812216 is 6122188.

8812216 = 1119² + 1120² + ... + 1125².

8812216 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8812211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55 + ... + 4198.

It is an arithmetic number, because the mean of its divisors is an integer number (606195).

Almost surely, 2^8812216 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 8812216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9699120).

8812216 is an abundant number, since it is smaller than the sum of its proper divisors (10586024).

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

8812216 is a wasteful number, since it uses less digits than its factorization.

8812216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4303 (or 4299 counting only the distinct ones).

The product of its digits is 1536, while the sum is 28.

The square root of 8812216 is about 2968.5376871450. The cubic root of 8812216 is about 206.5515117522.

Subtracting from 8812216 its sum of digits (28), we obtain a palindrome (8812188).

The spelling of 8812216 in words is "eight million, eight hundred twelve thousand, two hundred sixteen".