8307216 has 30 divisors (see below), whose sum is σ = 23249070. Its totient is φ = 2769024.

The previous prime is 8307193. The next prime is 8307223. The reversal of 8307216 is 6127038.

It can be written as a sum of positive squares in only one way, i.e., 5760000 + 2547216 = 2400^2 + 1596^2 .

It is an alternating number because its digits alternate between even and odd.

It is a self number, because there is not a number n which added to its sum of digits gives 8307216.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 28701 + ... + 28988.

It is an arithmetic number, because the mean of its divisors is an integer number (774969).

Almost surely, 2^8307216 is an apocalyptic number.

It is an amenable number.

8307216 is an abundant number, since it is smaller than the sum of its proper divisors (14941854).

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

8307216 is a wasteful number, since it uses less digits than its factorization.

8307216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57703 (or 57694 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 8307216 is about 2882.2241411799. The cubic root of 8307216 is about 202.5280436699.

The spelling of 8307216 in words is "eight million, three hundred seven thousand, two hundred sixteen".