8117816 has 16 divisors (see below), whose sum is σ = 17395440. Its totient is φ = 3479040.

The previous prime is 8117783. The next prime is 8117831. The reversal of 8117816 is 6187118.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72425 + ... + 72536.

It is an arithmetic number, because the mean of its divisors is an integer number (1087215).

Almost surely, 2^8117816 is an apocalyptic number.

It is an amenable number.

8117816 is an abundant number, since it is smaller than the sum of its proper divisors (9277624).

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

8117816 is a wasteful number, since it uses less digits than its factorization.

8117816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144974 (or 144970 counting only the distinct ones).

The product of its digits is 2688, while the sum is 32.

The square root of 8117816 is about 2849.1781271096. The cubic root of 8117816 is about 200.9770193936.

The spelling of 8117816 in words is "eight million, one hundred seventeen thousand, eight hundred sixteen".