23712543 has 6 divisors (see below), whose sum is σ = 34251464. Its totient is φ = 15808356.

The previous prime is 23712541. The next prime is 23712553. The reversal of 23712543 is 34521732.

It is not a de Polignac number, because 23712543 - 2¹ = 23712541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23712541) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1317355 + ... + 1317372.

Almost surely, 2^23712543 is an apocalyptic number.

23712543 is a deficient number, since it is larger than the sum of its proper divisors (10538921).

23712543 is a wasteful number, since it uses less digits than its factorization.

23712543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2634733 (or 2634730 counting only the distinct ones).

The product of its digits is 5040, while the sum is 27.

The square root of 23712543 is about 4869.5526488580. The cubic root of 23712543 is about 287.2936611457.

The spelling of 23712543 in words is "twenty-three million, seven hundred twelve thousand, five hundred forty-three".