320706 has 16 divisors (see below), whose sum is σ = 712800. Its totient is φ = 106884.

The previous prime is 320699. The next prime is 320713. The reversal of 320706 is 607023.

320706 is nontrivially palindromic in base 15.

320706 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (320699) and next prime (320713).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 320706.

It is an unprimeable number.

320706 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2916 + ... + 3023.

It is an arithmetic number, because the mean of its divisors is an integer number (44550).

2³²⁰⁷⁰⁶ is an apocalyptic number.

320706 is an abundant number, since it is smaller than the sum of its proper divisors (392094).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

320706 is a wasteful number, since it uses less digits than its factorization.

320706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5950 (or 5944 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 18.

The square root of 320706 is about 566.3091028758. The cubic root of 320706 is about 68.4493027120.

Adding to 320706 its reverse (607023), we get a palindrome (927729).

The spelling of 320706 in words is "three hundred twenty thousand, seven hundred six".