320963 has 4 divisors (see below), whose sum is σ = 327840. Its totient is φ = 314088.

The previous prime is 320953. The next prime is 321007. The reversal of 320963 is 369023.

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 320963 - 2⁶ = 320899 is a prime.

It is a Duffinian number.

It is a plaindrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (320923) 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, 3368 + ... + 3461.

It is an arithmetic number, because the mean of its divisors is an integer number (81960).

2³²⁰⁹⁶³ is an apocalyptic number.

320963 is a deficient number, since it is larger than the sum of its proper divisors (6877).

320963 is an equidigital number, since it uses as much as digits as its factorization.

320963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6876.

The product of its (nonzero) digits is 972, while the sum is 23.

The square root of 320963 is about 566.5359653191. The cubic root of 320963 is about 68.4675819396.

Adding to 320963 its reverse (369023), we get a palindrome (689986).

The spelling of 320963 in words is "three hundred twenty thousand, nine hundred sixty-three".