320707 has 4 divisors (see below), whose sum is σ = 325296. Its totient is φ = 316120.

The previous prime is 320699. The next prime is 320713. The reversal of 320707 is 707023.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 707023 = 641 ⋅1103.

It is a cyclic number.

It is not a de Polignac number, because 320707 - 2³ = 320699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320767) 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, 2188 + ... + 2329.

It is an arithmetic number, because the mean of its divisors is an integer number (81324).

2³²⁰⁷⁰⁷ is an apocalyptic number.

320707 is a deficient number, since it is larger than the sum of its proper divisors (4589).

320707 is an equidigital number, since it uses as much as digits as its factorization.

320707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4588.

The product of its (nonzero) digits is 294, while the sum is 19.

The square root of 320707 is about 566.3099857852. The cubic root of 320707 is about 68.4493738563.

The spelling of 320707 in words is "three hundred twenty thousand, seven hundred seven", and thus it is an iban number.