995905 has 4 divisors (see below), whose sum is σ = 1195092. Its totient is φ = 796720.

The previous prime is 995903. The next prime is 995909. The reversal of 995905 is 509599.

It is a happy number.

995905 is an esthetic number in base 3, because in such base its adjacent digits differ by 1.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 509599 = 19 ⋅26821.

It can be written as a sum of positive squares in 2 ways, for example, as 732736 + 263169 = 856^2 + 513^2 .

It is not a de Polignac number, because 995905 - 2¹ = 995903 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (995903) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99586 + ... + 99595.

It is an arithmetic number, because the mean of its divisors is an integer number (298773).

2⁹⁹⁵⁹⁰⁵ is an apocalyptic number.

It is an amenable number.

995905 is a deficient number, since it is larger than the sum of its proper divisors (199187).

995905 is a wasteful number, since it uses less digits than its factorization.

995905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199186.

The product of its (nonzero) digits is 18225, while the sum is 37.

The square root of 995905 is about 997.9503995690. The cubic root of 995905 is about 99.8633132525.

The spelling of 995905 in words is "nine hundred ninety-five thousand, nine hundred five".