816443716 has 12 divisors (see below), whose sum is σ = 1558665360. Its totient is φ = 371110760.

The previous prime is 816443713. The next prime is 816443723. The reversal of 816443716 is 617344618.

It is not an unprimeable number, because it can be changed into a prime (816443713) 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, 9277726 + ... + 9277813.

It is an arithmetic number, because the mean of its divisors is an integer number (129888780).

Almost surely, 2^816443716 is an apocalyptic number.

It is an amenable number.

816443716 is a deficient number, since it is larger than the sum of its proper divisors (742221644).

816443716 is a wasteful number, since it uses less digits than its factorization.

816443716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18555554 (or 18555552 counting only the distinct ones).

The product of its digits is 96768, while the sum is 40.

The square root of 816443716 is about 28573.4792421224. The cubic root of 816443716 is about 934.6350930035.

The spelling of 816443716 in words is "eight hundred sixteen million, four hundred forty-three thousand, seven hundred sixteen".