23643799 has 2 divisors, whose sum is σ = 23643800. Its totient is φ = 23643798.

The previous prime is 23643779. The next prime is 23643803. The reversal of 23643799 is 99734632.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23643799 - 2¹³ = 23635607 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23643709) 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, 11821899 + 11821900.

It is an arithmetic number, because the mean of its divisors is an integer number (11821900).

Almost surely, 2^23643799 is an apocalyptic number.

23643799 is a deficient number, since it is larger than the sum of its proper divisors (1).

23643799 is an equidigital number, since it uses as much as digits as its factorization.

23643799 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 244944, while the sum is 43.

The square root of 23643799 is about 4862.4889717099. The cubic root of 23643799 is about 287.0157655833.

It can be divided in two parts, 23643 and 799, that added together give a palindrome (24442).

The spelling of 23643799 in words is "twenty-three million, six hundred forty-three thousand, seven hundred ninety-nine".