23434543 has 16 divisors (see below), whose sum is σ = 27786240. Its totient is φ = 19526400.

The previous prime is 23434531. The next prime is 23434549. The reversal of 23434543 is 34543432.

23434543 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

It is a cyclic number.

It is not a de Polignac number, because 23434543 - 2⁵ = 23434511 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23434549) 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, 4671 + ... + 8287.

It is an arithmetic number, because the mean of its divisors is an integer number (1736640).

Almost surely, 2^23434543 is an apocalyptic number.

23434543 is a deficient number, since it is larger than the sum of its proper divisors (4351697).

23434543 is a wasteful number, since it uses less digits than its factorization.

23434543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3678.

The product of its digits is 17280, while the sum is 28.

The square root of 23434543 is about 4840.9237754792. The cubic root of 23434543 is about 286.1665248610.

Adding to 23434543 its reverse (34543432), we get a palindrome (57977975).

Subtracting 23434543 from its reverse (34543432), we obtain a square (11108889 = 3333²).

It can be divided in two parts, 2343 and 4543, that added together give a palindrome (6886).

The spelling of 23434543 in words is "twenty-three million, four hundred thirty-four thousand, five hundred forty-three".