8168216 has 16 divisors (see below), whose sum is σ = 17503440. Its totient is φ = 3500640.

The previous prime is 8168207. The next prime is 8168257. The reversal of 8168216 is 6128618.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72875 + ... + 72986.

It is an arithmetic number, because the mean of its divisors is an integer number (1093965).

Almost surely, 2^8168216 is an apocalyptic number.

It is an amenable number.

8168216 is an abundant number, since it is smaller than the sum of its proper divisors (9335224).

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

8168216 is a wasteful number, since it uses less digits than its factorization.

8168216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145874 (or 145870 counting only the distinct ones).

The product of its digits is 4608, while the sum is 32.

The square root of 8168216 is about 2858.0090972563. The cubic root of 8168216 is about 201.3920879742.

The spelling of 8168216 in words is "eight million, one hundred sixty-eight thousand, two hundred sixteen".