23850221 has 2 divisors, whose sum is σ = 23850222. Its totient is φ = 23850220.

The previous prime is 23850173. The next prime is 23850227. The reversal of 23850221 is 12205832.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23629321 + 220900 = 4861^2 + 470^2 .

It is a cyclic number.

It is not a de Polignac number, because 23850221 - 2¹⁰ = 23849197 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23850227) by changing a digit.

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

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11925110 + 11925111.

It is an arithmetic number, because the mean of its divisors is an integer number (11925111).

Almost surely, 2^23850221 is an apocalyptic number.

It is an amenable number.

23850221 is a deficient number, since it is larger than the sum of its proper divisors (1).

23850221 is an equidigital number, since it uses as much as digits as its factorization.

23850221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 23850221 is about 4883.6688053143. The cubic root of 23850221 is about 287.8486095092.

The spelling of 23850221 in words is "twenty-three million, eight hundred fifty thousand, two hundred twenty-one".