321449 has 2 divisors, whose sum is σ = 321450. Its totient is φ = 321448.

The previous prime is 321443. The next prime is 321467. The reversal of 321449 is 944123.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 243049 + 78400 = 493^2 + 280^2 .

It is an emirp because it is prime and its reverse (944123) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 321449 - 2⁸ = 321193 is a prime.

It is a Sophie Germain prime.

It is a d-powerful number, because it can be written as 3⁵ + 2³ + 4 + 1 + 4⁹ + 9⁵ .

It is a Curzon number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 321449.

It is not a weakly prime, because it can be changed into another prime (321443) 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, 160724 + 160725.

It is an arithmetic number, because the mean of its divisors is an integer number (160725).

2³²¹⁴⁴⁹ is an apocalyptic number.

It is an amenable number.

321449 is a deficient number, since it is larger than the sum of its proper divisors (1).

321449 is an equidigital number, since it uses as much as digits as its factorization.

321449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 864, while the sum is 23.

The square root of 321449 is about 566.9647255341. The cubic root of 321449 is about 68.5021222281.

The spelling of 321449 in words is "three hundred twenty-one thousand, four hundred forty-nine".