23932543 has 2 divisors, whose sum is σ = 23932544. Its totient is φ = 23932542.

The previous prime is 23932507. The next prime is 23932591. The reversal of 23932543 is 34523932.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23932543 is a prime.

It is a super-2 number, since 2×23932543² = 1145533228893698, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23932943) by changing a digit.

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

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11966271 + 11966272.

It is an arithmetic number, because the mean of its divisors is an integer number (11966272).

Almost surely, 2^23932543 is an apocalyptic number.

23932543 is a deficient number, since it is larger than the sum of its proper divisors (1).

23932543 is an equidigital number, since it uses as much as digits as its factorization.

23932543 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19440, while the sum is 31.

The square root of 23932543 is about 4892.0898397311. The cubic root of 23932543 is about 288.1794109421.

It can be divided in two parts, 239 and 32543, that multiplied together give a palindrome (7777777).

The spelling of 23932543 in words is "twenty-three million, nine hundred thirty-two thousand, five hundred forty-three".