995665 has 16 divisors (see below), whose sum is σ = 1336896. Its totient is φ = 705600.

The previous prime is 995663. The next prime is 995669. The reversal of 995665 is 566599.

995665 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 995665 - 2¹ = 995663 is a prime.

It is an Ulam number.

995665 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (995663) 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, 2155 + ... + 2575.

It is an arithmetic number, because the mean of its divisors is an integer number (83556).

2⁹⁹⁵⁶⁶⁵ is an apocalyptic number.

It is an amenable number.

995665 is a deficient number, since it is larger than the sum of its proper divisors (341231).

995665 is a wasteful number, since it uses less digits than its factorization.

995665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480.

The product of its digits is 72900, while the sum is 40.

The square root of 995665 is about 997.8301458665. The cubic root of 995665 is about 99.8552906932.

The spelling of 995665 in words is "nine hundred ninety-five thousand, six hundred sixty-five".