23745247 has 2 divisors, whose sum is σ = 23745248. Its totient is φ = 23745246.

The previous prime is 23745217. The next prime is 23745257. The reversal of 23745247 is 74254732.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23745247 - 2¹⁹ = 23220959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23745217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11872623 + 11872624.

It is an arithmetic number, because the mean of its divisors is an integer number (11872624).

Almost surely, 2^23745247 is an apocalyptic number.

23745247 is a deficient number, since it is larger than the sum of its proper divisors (1).

23745247 is an equidigital number, since it uses as much as digits as its factorization.

23745247 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 47040, while the sum is 34.

The square root of 23745247 is about 4872.9095004935. The cubic root of 23745247 is about 287.4256775747.

Adding to 23745247 its reverse (74254732), we get a palindrome (97999979).

The spelling of 23745247 in words is "twenty-three million, seven hundred forty-five thousand, two hundred forty-seven".