23043943 has 16 divisors (see below), whose sum is σ = 25833472. Its totient is φ = 20412000.

The previous prime is 23043919. The next prime is 23043947. The reversal of 23043943 is 34934032.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23043943 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 (23043947) 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, 84898 + ... + 85168.

It is an arithmetic number, because the mean of its divisors is an integer number (1614592).

Almost surely, 2^23043943 is an apocalyptic number.

23043943 is a deficient number, since it is larger than the sum of its proper divisors (2789529).

23043943 is a wasteful number, since it uses less digits than its factorization.

23043943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526.

The product of its (nonzero) digits is 7776, while the sum is 28.

The square root of 23043943 is about 4800.4107115954. The cubic root of 23043943 is about 284.5676958758.

Adding to 23043943 its reverse (34934032), we get a palindrome (57977975).

The spelling of 23043943 in words is "twenty-three million, forty-three thousand, nine hundred forty-three".