23987339 has 2 divisors, whose sum is σ = 23987340. Its totient is φ = 23987338.

The previous prime is 23987297. The next prime is 23987347. The reversal of 23987339 is 93378932.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23987339 - 2²⁴ = 7210123 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23987339.

It is not a weakly prime, because it can be changed into another prime (23987389) 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, 11993669 + 11993670.

It is an arithmetic number, because the mean of its divisors is an integer number (11993670).

Almost surely, 2^23987339 is an apocalyptic number.

23987339 is a deficient number, since it is larger than the sum of its proper divisors (1).

23987339 is an equidigital number, since it uses as much as digits as its factorization.

23987339 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 244944, while the sum is 44.

The square root of 23987339 is about 4897.6871071966. The cubic root of 23987339 is about 288.3991820232.

It can be divided in two parts, 239 and 87339, that added together give a palindrome (87578).

The spelling of 23987339 in words is "twenty-three million, nine hundred eighty-seven thousand, three hundred thirty-nine".