23623841 has 2 divisors, whose sum is σ = 23623842. Its totient is φ = 23623840.

The previous prime is 23623837. The next prime is 23623843. The reversal of 23623841 is 14832632.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18241441 + 5382400 = 4271^2 + 2320^2 .

It is a cyclic number.

It is not a de Polignac number, because 23623841 - 2² = 23623837 is a prime.

Together with 23623843, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (23623843) 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, 11811920 + 11811921.

It is an arithmetic number, because the mean of its divisors is an integer number (11811921).

Almost surely, 2^23623841 is an apocalyptic number.

It is an amenable number.

23623841 is a deficient number, since it is larger than the sum of its proper divisors (1).

23623841 is an equidigital number, since it uses as much as digits as its factorization.

23623841 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6912, while the sum is 29.

The square root of 23623841 is about 4860.4362972885. The cubic root of 23623841 is about 286.9349850910.

The spelling of 23623841 in words is "twenty-three million, six hundred twenty-three thousand, eight hundred forty-one".