324242689 has 2 divisors, whose sum is σ = 324242690. Its totient is φ = 324242688.

The previous prime is 324242687. The next prime is 324242749. The reversal of 324242689 is 986242423.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 236913664 + 87329025 = 15392^2 + 9345^2 .

It is an emirp because it is prime and its reverse (986242423) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 324242689 - 2¹ = 324242687 is a prime.

Together with 324242687, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (324242687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 162121344 + 162121345.

It is an arithmetic number, because the mean of its divisors is an integer number (162121345).

Almost surely, 2^324242689 is an apocalyptic number.

It is an amenable number.

324242689 is a deficient number, since it is larger than the sum of its proper divisors (1).

324242689 is an equidigital number, since it uses as much as digits as its factorization.

324242689 is an evil number, because the sum of its binary digits is even.

The product of its digits is 165888, while the sum is 40.

The square root of 324242689 is about 18006.7400991962. The cubic root of 324242689 is about 686.9999901123. Note that the first 5 decimals are identical.

The spelling of 324242689 in words is "three hundred twenty-four million, two hundred forty-two thousand, six hundred eighty-nine".