321868 has 12 divisors (see below), whose sum is σ = 572152. Its totient is φ = 158400.

The previous prime is 321851. The next prime is 321889. The reversal of 321868 is 868123.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 333 + ... + 868.

2³²¹⁸⁶⁸ is an apocalyptic number.

It is an amenable number.

321868 is a deficient number, since it is larger than the sum of its proper divisors (250284).

321868 is a wasteful number, since it uses less digits than its factorization.

321868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1272 (or 1270 counting only the distinct ones).

The product of its digits is 2304, while the sum is 28.

The square root of 321868 is about 567.3341167249. The cubic root of 321868 is about 68.5318728545.

The spelling of 321868 in words is "three hundred twenty-one thousand, eight hundred sixty-eight".