8102216 has 32 divisors (see below), whose sum is σ = 15717240. Its totient is φ = 3913728.

The previous prime is 8102177. The next prime is 8102221. The reversal of 8102216 is 6122018.

It can be written as a sum of positive squares in 4 ways, for example, as 8099716 + 2500 = 2846^2 + 50^2 .

It is a super-2 number, since 2×8102216² = 131291808221312, which contains 22 as substring.

It is an Ulam 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 7 ways as a sum of consecutive naturals, for example, 41030 + ... + 41226.

Almost surely, 2^8102216 is an apocalyptic number.

It is an amenable number.

8102216 is a deficient number, since it is larger than the sum of its proper divisors (7615024).

8102216 is a wasteful number, since it uses less digits than its factorization.

8102216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353 (or 349 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 8102216 is about 2846.4391790446. The cubic root of 8102216 is about 200.8481977179.

The spelling of 8102216 in words is "eight million, one hundred two thousand, two hundred sixteen".