320673 has 8 divisors (see below), whose sum is σ = 431200. Its totient is φ = 211968.

The previous prime is 320669. The next prime is 320687. The reversal of 320673 is 376023.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 320673 - 2² = 320669 is a prime.

It is a Duffinian number.

320673 is a lucky number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 320673.

It is not an unprimeable number, because it can be changed into a prime (320693) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33 + ... + 801.

It is an arithmetic number, because the mean of its divisors is an integer number (53900).

2³²⁰⁶⁷³ is an apocalyptic number.

It is an amenable number.

320673 is a deficient number, since it is larger than the sum of its proper divisors (110527).

320673 is a wasteful number, since it uses less digits than its factorization.

320673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 911.

The product of its (nonzero) digits is 756, while the sum is 21.

The square root of 320673 is about 566.2799660945. The cubic root of 320673 is about 68.4469548664.

Adding to 320673 its reverse (376023), we get a palindrome (696696).

The spelling of 320673 in words is "three hundred twenty thousand, six hundred seventy-three".