965993 has 4 divisors (see below), whose sum is σ = 1104000. Its totient is φ = 827988.

The previous prime is 965989. The next prime is 966011. The reversal of 965993 is 399569.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 399569 = 463 ⋅863.

It is not a de Polignac number, because 965993 - 2² = 965989 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 965993.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (965953) 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, 68993 + ... + 69006.

It is an arithmetic number, because the mean of its divisors is an integer number (276000).

2⁹⁶⁵⁹⁹³ is an apocalyptic number.

It is an amenable number.

965993 is a deficient number, since it is larger than the sum of its proper divisors (138007).

965993 is a wasteful number, since it uses less digits than its factorization.

965993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138006.

The product of its digits is 65610, while the sum is 41.

The square root of 965993 is about 982.8494289564. The cubic root of 965993 is about 98.8533351874.

The spelling of 965993 in words is "nine hundred sixty-five thousand, nine hundred ninety-three".