321867 has 32 divisors (see below), whose sum is σ = 591360. Its totient is φ = 168480.

The previous prime is 321851. The next prime is 321889. The reversal of 321867 is 768123.

It is not a de Polignac number, because 321867 - 2⁴ = 321851 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

321867 is a Rhonda number in base 14.

321867 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 321867.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 321867.

It is not an unprimeable number, because it can be changed into a prime (321817) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2392 + ... + 2522.

It is an arithmetic number, because the mean of its divisors is an integer number (18480).

2³²¹⁸⁶⁷ is an apocalyptic number.

321867 is a deficient number, since it is larger than the sum of its proper divisors (269493).

321867 is a wasteful number, since it uses less digits than its factorization.

321867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160 (or 154 counting only the distinct ones).

The product of its digits is 2016, while the sum is 27.

The square root of 321867 is about 567.3332354093. Note that the first 3 decimals coincide. The cubic root of 321867 is about 68.5318018814.

The spelling of 321867 in words is "three hundred twenty-one thousand, eight hundred sixty-seven".