905995 has 4 divisors (see below), whose sum is σ = 1087200. Its totient is φ = 724792.

The previous prime is 905963. The next prime is 905999. The reversal of 905995 is 599509.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 905995 - 2⁵ = 905963 is a prime.

It is not an unprimeable number, because it can be changed into a prime (905999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90595 + ... + 90604.

It is an arithmetic number, because the mean of its divisors is an integer number (271800).

2⁹⁰⁵⁹⁹⁵ is an apocalyptic number.

905995 is a deficient number, since it is larger than the sum of its proper divisors (181205).

905995 is a wasteful number, since it uses less digits than its factorization.

905995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181204.

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

The square root of 905995 is about 951.8376962487. The cubic root of 905995 is about 96.7628386259.

The spelling of 905995 in words is "nine hundred five thousand, nine hundred ninety-five".