324491 has 2 divisors, whose sum is σ = 324492. Its totient is φ = 324490.

The previous prime is 324473. The next prime is 324497. The reversal of 324491 is 194423.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 324491 - 2⁶ = 324427 is a prime.

It is not a weakly prime, because it can be changed into another prime (324497) 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, 162245 + 162246.

It is an arithmetic number, because the mean of its divisors is an integer number (162246).

2³²⁴⁴⁹¹ is an apocalyptic number.

324491 is a deficient number, since it is larger than the sum of its proper divisors (1).

324491 is an equidigital number, since it uses as much as digits as its factorization.

324491 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 324491 is about 569.6411150891. The cubic root of 324491 is about 68.7175317762.

The spelling of 324491 in words is "three hundred twenty-four thousand, four hundred ninety-one".