23968739 has 2 divisors, whose sum is σ = 23968740. Its totient is φ = 23968738.

The previous prime is 23968733. The next prime is 23968751. The reversal of 23968739 is 93786932.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23968739 - 2¹⁶ = 23903203 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 23968693 and 23968702.

It is not a weakly prime, because it can be changed into another prime (23968733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11984369 + 11984370.

It is an arithmetic number, because the mean of its divisors is an integer number (11984370).

Almost surely, 2^23968739 is an apocalyptic number.

23968739 is a deficient number, since it is larger than the sum of its proper divisors (1).

23968739 is an equidigital number, since it uses as much as digits as its factorization.

23968739 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 489888, while the sum is 47.

The square root of 23968739 is about 4895.7878834770. The cubic root of 23968739 is about 288.3246203017.

The spelling of 23968739 in words is "twenty-three million, nine hundred sixty-eight thousand, seven hundred thirty-nine".