2321329 has 2 divisors, whose sum is σ = 2321330. Its totient is φ = 2321328.

The previous prime is 2321317. The next prime is 2321339. The reversal of 2321329 is 9231232.

2321329 is nontrivially palindromic in base 9.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2117025 + 204304 = 1455^2 + 452^2 .

It is a cyclic number.

It is not a de Polignac number, because 2321329 - 2¹³ = 2313137 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2321309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1160664 + 1160665.

It is an arithmetic number, because the mean of its divisors is an integer number (1160665).

2^2321329 is an apocalyptic number.

It is an amenable number.

2321329 is a deficient number, since it is larger than the sum of its proper divisors (1).

2321329 is an equidigital number, since it uses as much as digits as its factorization.

2321329 is an evil number, because the sum of its binary digits is even.

The product of its digits is 648, while the sum is 22.

The square root of 2321329 is about 1523.5908243357. The cubic root of 2321329 is about 132.4073922726.

Subtracting 2321329 from its reverse (9231232), we obtain a triangular number (6909903 = T₃₇₁₇).

The spelling of 2321329 in words is "two million, three hundred twenty-one thousand, three hundred twenty-nine".