23722543 has 16 divisors (see below), whose sum is σ = 26278560. Its totient is φ = 21280896.

The previous prime is 23722529. The next prime is 23722549. The reversal of 23722543 is 34522732.

It is not a de Polignac number, because 23722543 - 2⁵ = 23722511 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 (23722549) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 120321 + ... + 120517.

It is an arithmetic number, because the mean of its divisors is an integer number (1642410).

Almost surely, 2^23722543 is an apocalyptic number.

23722543 is a deficient number, since it is larger than the sum of its proper divisors (2556017).

23722543 is a wasteful number, since it uses less digits than its factorization.

23722543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426.

The product of its digits is 10080, while the sum is 28.

The square root of 23722543 is about 4870.5793289916. The cubic root of 23722543 is about 287.3340410809.

The spelling of 23722543 in words is "twenty-three million, seven hundred twenty-two thousand, five hundred forty-three".