2328509 has 2 divisors, whose sum is σ = 2328510. Its totient is φ = 2328508.

The previous prime is 2328479. The next prime is 2328517. The reversal of 2328509 is 9058232.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1322500 + 1006009 = 1150^2 + 1003^2 .

It is a cyclic number.

It is not a de Polignac number, because 2328509 - 2¹⁶ = 2262973 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2328539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1164254 + 1164255.

It is an arithmetic number, because the mean of its divisors is an integer number (1164255).

2^2328509 is an apocalyptic number.

It is an amenable number.

2328509 is a deficient number, since it is larger than the sum of its proper divisors (1).

2328509 is an equidigital number, since it uses as much as digits as its factorization.

2328509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 2328509 is about 1525.9452808014. The cubic root of 2328509 is about 132.5437662468.

The spelling of 2328509 in words is "two million, three hundred twenty-eight thousand, five hundred nine".