965905 has 4 divisors (see below), whose sum is σ = 1159092. Its totient is φ = 772720.

The previous prime is 965893. The next prime is 965927. The reversal of 965905 is 509569.

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

It can be written as a sum of positive squares in 2 ways, for example, as 591361 + 374544 = 769^2 + 612^2 .

It is not a de Polignac number, because 965905 - 2⁷ = 965777 is a prime.

It is a Duffinian number.

965905 is a lucky number.

It is an unprimeable number.

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, 96586 + ... + 96595.

It is an arithmetic number, because the mean of its divisors is an integer number (289773).

2⁹⁶⁵⁹⁰⁵ is an apocalyptic number.

It is an amenable number.

965905 is a deficient number, since it is larger than the sum of its proper divisors (193187).

965905 is a wasteful number, since it uses less digits than its factorization.

965905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193186.

The product of its (nonzero) digits is 12150, while the sum is 34.

The square root of 965905 is about 982.8046601436. The cubic root of 965905 is about 98.8503333169.

The spelling of 965905 in words is "nine hundred sixty-five thousand, nine hundred five".