8105818 has 32 divisors (see below), whose sum is σ = 15114240. Its totient is φ = 3181680.

The previous prime is 8105813. The next prime is 8105869. The reversal of 8105818 is 8185018.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is an alternating number because its digits alternate between even and odd.

It is a self number, because there is not a number n which added to its sum of digits gives 8105818.

It is not an unprimeable number, because it can be changed into a prime (8105813) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7755 + ... + 8737.

It is an arithmetic number, because the mean of its divisors is an integer number (472320).

Almost surely, 2^8105818 is an apocalyptic number.

8105818 is a deficient number, since it is larger than the sum of its proper divisors (7008422).

8105818 is a wasteful number, since it uses less digits than its factorization.

8105818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1042.

The product of its (nonzero) digits is 2560, while the sum is 31.

The square root of 8105818 is about 2847.0718290904. The cubic root of 8105818 is about 200.8779569849.

The spelling of 8105818 in words is "eight million, one hundred five thousand, eight hundred eighteen".