23538443 has 2 divisors, whose sum is σ = 23538444. Its totient is φ = 23538442.

The previous prime is 23538433. The next prime is 23538461. The reversal of 23538443 is 34483532.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23538443 - 2⁶ = 23538379 is a prime.

It is not a weakly prime, because it can be changed into another prime (23538433) 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, 11769221 + 11769222.

It is an arithmetic number, because the mean of its divisors is an integer number (11769222).

Almost surely, 2^23538443 is an apocalyptic number.

23538443 is a deficient number, since it is larger than the sum of its proper divisors (1).

23538443 is an equidigital number, since it uses as much as digits as its factorization.

23538443 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34560, while the sum is 32.

The square root of 23538443 is about 4851.6433298420. The cubic root of 23538443 is about 286.5888198270.

The spelling of 23538443 in words is "twenty-three million, five hundred thirty-eight thousand, four hundred forty-three".