995805 has 12 divisors (see below), whose sum is σ = 1726140. Its totient is φ = 531072.

The previous prime is 995801. The next prime is 995833. The reversal of 995805 is 508599.

It can be written as a sum of positive squares in 2 ways, for example, as 710649 + 285156 = 843^2 + 534^2 .

It is not a de Polignac number, because 995805 - 2² = 995801 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 995805.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 995805.

It is not an unprimeable number, because it can be changed into a prime (995801) 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 11 ways as a sum of consecutive naturals, for example, 11020 + ... + 11109.

It is an arithmetic number, because the mean of its divisors is an integer number (143845).

2⁹⁹⁵⁸⁰⁵ is an apocalyptic number.

It is an amenable number.

995805 is a deficient number, since it is larger than the sum of its proper divisors (730335).

995805 is a wasteful number, since it uses less digits than its factorization.

995805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22140 (or 22137 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 36.

The square root of 995805 is about 997.9002956208. The cubic root of 995805 is about 99.8599706761.

The spelling of 995805 in words is "nine hundred ninety-five thousand, eight hundred five".