320803 has 6 divisors (see below), whose sum is σ = 373236. Its totient is φ = 274932.

The previous prime is 320791. The next prime is 320821. The reversal of 320803 is 308023.

It is a happy number.

It is not a de Polignac number, because 320803 - 2⁹ = 320291 is a prime.

It is an Ulam number.

It is a Duffinian number.

320803 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (320833) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3225 + ... + 3322.

It is an arithmetic number, because the mean of its divisors is an integer number (62206).

2³²⁰⁸⁰³ is an apocalyptic number.

320803 is a deficient number, since it is larger than the sum of its proper divisors (52433).

320803 is an equidigital number, since it uses as much as digits as its factorization.

320803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6561 (or 6554 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 320803 is about 566.3947386761. The cubic root of 320803 is about 68.4562030226.

Adding to 320803 its reverse (308023), we get a palindrome (628826).

The spelling of 320803 in words is "three hundred twenty thousand, eight hundred three".