320867 has 2 divisors, whose sum is σ = 320868. Its totient is φ = 320866.

The previous prime is 320861. The next prime is 320899. The reversal of 320867 is 768023.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 320867 - 2⁴ = 320851 is a prime.

It is a Chen prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 320867.

It is not a weakly prime, because it can be changed into another prime (320861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160433 + 160434.

It is an arithmetic number, because the mean of its divisors is an integer number (160434).

2³²⁰⁸⁶⁷ is an apocalyptic number.

320867 is a deficient number, since it is larger than the sum of its proper divisors (1).

320867 is an equidigital number, since it uses as much as digits as its factorization.

320867 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 320867 is about 566.4512335585. The cubic root of 320867 is about 68.4607550433.

The spelling of 320867 in words is "three hundred twenty thousand, eight hundred sixty-seven".