320807 has 8 divisors (see below), whose sum is σ = 344736. Its totient is φ = 297472.

The previous prime is 320791. The next prime is 320821. The reversal of 320807 is 708023.

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

It is a cyclic number.

It is not a de Polignac number, because 320807 - 2⁴ = 320791 is a prime.

It is a Duffinian number.

It is a plaindrome in base 12.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 320807.

It is not an unprimeable number, because it can be changed into a prime (320867) 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, 1838 + ... + 2004.

It is an arithmetic number, because the mean of its divisors is an integer number (43092).

2³²⁰⁸⁰⁷ is an apocalyptic number.

320807 is a deficient number, since it is larger than the sum of its proper divisors (23929).

320807 is a wasteful number, since it uses less digits than its factorization.

320807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 320807 is about 566.3982697714. The cubic root of 320807 is about 68.4564875417.

The spelling of 320807 in words is "three hundred twenty thousand, eight hundred seven".