320801 has 4 divisors (see below), whose sum is σ = 345492. Its totient is φ = 296112.

The previous prime is 320791. The next prime is 320821. The reversal of 320801 is 108023.

320801 = 400² + 401².

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 160000 + 160801 = 400^2 + 401^2 .

It is a cyclic number.

It is not a de Polignac number, because 320801 - 2¹⁴ = 304417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320821) 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, 12326 + ... + 12351.

It is an arithmetic number, because the mean of its divisors is an integer number (86373).

2³²⁰⁸⁰¹ is an apocalyptic number.

320801 is the 401-st centered square number.

It is an amenable number.

320801 is a deficient number, since it is larger than the sum of its proper divisors (24691).

320801 is a wasteful number, since it uses less digits than its factorization.

320801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24690.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 320801 is about 566.3929731203. The cubic root of 320801 is about 68.4560607622.

Adding to 320801 its reverse (108023), we get a palindrome (428824).

The spelling of 320801 in words is "three hundred twenty thousand, eight hundred one".