8091800 has 24 divisors (see below), whose sum is σ = 18813900. Its totient is φ = 3236640.

The previous prime is 8091773. The next prime is 8091803. The reversal of 8091800 is 81908.

It is a self number, because there is not a number n which added to its sum of digits gives 8091800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8091803) 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 5 ways as a sum of consecutive naturals, for example, 20030 + ... + 20429.

Almost surely, 2^8091800 is an apocalyptic number.

It is an amenable number.

8091800 is an abundant number, since it is smaller than the sum of its proper divisors (10722100).

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

8091800 is a wasteful number, since it uses less digits than its factorization.

8091800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40475 (or 40466 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 26.

The square root of 8091800 is about 2844.6089362160. The cubic root of 8091800 is about 200.7620923875.

The spelling of 8091800 in words is "eight million, ninety-one thousand, eight hundred".