23708543 has 4 divisors (see below), whose sum is σ = 24155928. Its totient is φ = 23261160.

The previous prime is 23708519. The next prime is 23708569. The reversal of 23708543 is 34580732.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23708543 - 2⁶ = 23708479 is a prime.

It is a super-2 number, since 2×23708543² = 1124190022365698, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23708743) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 223613 + ... + 223718.

It is an arithmetic number, because the mean of its divisors is an integer number (6038982).

Almost surely, 2^23708543 is an apocalyptic number.

23708543 is a deficient number, since it is larger than the sum of its proper divisors (447385).

23708543 is an equidigital number, since it uses as much as digits as its factorization.

23708543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 447384.

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 23708543 is about 4869.1419161902. The cubic root of 23708543 is about 287.2775059929.

The spelling of 23708543 in words is "twenty-three million, seven hundred eight thousand, five hundred forty-three".