320667 has 8 divisors (see below), whose sum is σ = 432720. Its totient is φ = 211200.

The previous prime is 320659. The next prime is 320669. The reversal of 320667 is 766023.

320667 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 320667 - 2³ = 320659 is a prime.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

320667 is strictly pandigital in base 7.

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 320667.

It is not an unprimeable number, because it can be changed into a prime (320669) 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, 334 + ... + 867.

It is an arithmetic number, because the mean of its divisors is an integer number (54090).

2³²⁰⁶⁶⁷ is an apocalyptic number.

320667 is a deficient number, since it is larger than the sum of its proper divisors (112053).

320667 is a wasteful number, since it uses less digits than its factorization.

320667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1293.

The product of its (nonzero) digits is 1512, while the sum is 24.

The square root of 320667 is about 566.2746683368. The cubic root of 320667 is about 68.4465279681.

It can be divided in two parts, 3 and 20667, that multiplied together give a square (62001 = 249²).

The spelling of 320667 in words is "three hundred twenty thousand, six hundred sixty-seven".