8111816 has 16 divisors (see below), whose sum is σ = 15381900. Its totient is φ = 4009984.

The previous prime is 8111791. The next prime is 8111849. The reversal of 8111816 is 6181118.

It can be written as a sum of positive squares in 2 ways, for example, as 8099716 + 12100 = 2846^2 + 110^2 .

It is a congruent number.

It is an unprimeable number.

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, 4985 + ... + 6408.

Almost surely, 2^8111816 is an apocalyptic number.

It is an amenable number.

8111816 is a deficient number, since it is larger than the sum of its proper divisors (7270084).

8111816 is a wasteful number, since it uses less digits than its factorization.

8111816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11488 (or 11484 counting only the distinct ones).

The product of its digits is 384, while the sum is 26.

The square root of 8111816 is about 2848.1249972570. The cubic root of 8111816 is about 200.9274921427.

The spelling of 8111816 in words is "eight million, one hundred eleven thousand, eight hundred sixteen".