8005818 has 16 divisors (see below), whose sum is σ = 16238016. Its totient is φ = 2630880.

The previous prime is 8005799. The next prime is 8005819. The reversal of 8005818 is 8185008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8005819) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8971 + ... + 9822.

It is an arithmetic number, because the mean of its divisors is an integer number (1014876).

Almost surely, 2^8005818 is an apocalyptic number.

8005818 is an abundant number, since it is smaller than the sum of its proper divisors (8232198).

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

8005818 is a wasteful number, since it uses less digits than its factorization.

8005818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18869.

The product of its (nonzero) digits is 2560, while the sum is 30.

The square root of 8005818 is about 2829.4554246356. The cubic root of 8005818 is about 200.0484715849.

The spelling of 8005818 in words is "eight million, five thousand, eight hundred eighteen".