8219816 has 16 divisors (see below), whose sum is σ = 16813440. Its totient is φ = 3736240.

The previous prime is 8219791. The next prime is 8219819. The reversal of 8219816 is 6189128.

It is not an unprimeable number, because it can be changed into a prime (8219819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46616 + ... + 46791.

It is an arithmetic number, because the mean of its divisors is an integer number (1050840).

Almost surely, 2^8219816 is an apocalyptic number.

It is an amenable number.

8219816 is an abundant number, since it is smaller than the sum of its proper divisors (8593624).

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

8219816 is a wasteful number, since it uses less digits than its factorization.

8219816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93424 (or 93420 counting only the distinct ones).

The product of its digits is 6912, while the sum is 35.

The square root of 8219816 is about 2867.0221485018. The cubic root of 8219816 is about 201.8152740528.

The spelling of 8219816 in words is "eight million, two hundred nineteen thousand, eight hundred sixteen".