965663 has 4 divisors (see below), whose sum is σ = 991800. Its totient is φ = 939528.

The previous prime is 965659. The next prime is 965677. The reversal of 965663 is 366569.

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 965663 - 2² = 965659 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (965603) 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 3 ways as a sum of consecutive naturals, for example, 13013 + ... + 13086.

It is an arithmetic number, because the mean of its divisors is an integer number (247950).

2⁹⁶⁵⁶⁶³ is an apocalyptic number.

965663 is a deficient number, since it is larger than the sum of its proper divisors (26137).

965663 is a wasteful number, since it uses less digits than its factorization.

965663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26136.

The product of its digits is 29160, while the sum is 35.

The square root of 965663 is about 982.6815353918. The cubic root of 965663 is about 98.8420772328.

It can be divided in two parts, 96566 and 3, that added together give a palindrome (96569).

The spelling of 965663 in words is "nine hundred sixty-five thousand, six hundred sixty-three".