8445216 has 96 divisors (see below), whose sum is σ = 24470208. Its totient is φ = 2534400.

The previous prime is 8445161. The next prime is 8445251. The reversal of 8445216 is 6125448.

It is a tau number, because it is divible by the number of its divisors (96).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83566 + ... + 83666.

It is an arithmetic number, because the mean of its divisors is an integer number (254898).

Almost surely, 2^8445216 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 8445216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12235104).

8445216 is an abundant number, since it is smaller than the sum of its proper divisors (16024992).

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

8445216 is a wasteful number, since it uses less digits than its factorization.

8445216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194 (or 186 counting only the distinct ones).

The product of its digits is 7680, while the sum is 30.

The square root of 8445216 is about 2906.0653812328. The cubic root of 8445216 is about 203.6433599560.

The spelling of 8445216 in words is "eight million, four hundred forty-five thousand, two hundred sixteen".