383321 has 2 divisors, whose sum is σ = 383322. Its totient is φ = 383320.

The previous prime is 383303. The next prime is 383347. The reversal of 383321 is 123383.

383321 is nontrivially palindromic in base 8.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 373321 + 10000 = 611^2 + 100^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-383321 is a prime.

It is an Ulam number.

It is a plaindrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 383293 and 383302.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 383321.

It is not a weakly prime, because it can be changed into another prime (383371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 191660 + 191661.

It is an arithmetic number, because the mean of its divisors is an integer number (191661).

2³⁸³³²¹ is an apocalyptic number.

It is an amenable number.

383321 is a deficient number, since it is larger than the sum of its proper divisors (1).

383321 is an equidigital number, since it uses as much as digits as its factorization.

383321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 432, while the sum is 20.

The square root of 383321 is about 619.1292272216. The cubic root of 383321 is about 72.6419572957.

The spelling of 383321 in words is "three hundred eighty-three thousand, three hundred twenty-one".