23043039 has 4 divisors (see below), whose sum is σ = 30724056. Its totient is φ = 15362024.

The previous prime is 23043037. The next prime is 23043043. The reversal of 23043039 is 93034032.

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 23043039 - 2¹ = 23043037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23043037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3840504 + ... + 3840509.

It is an arithmetic number, because the mean of its divisors is an integer number (7681014).

Almost surely, 2^23043039 is an apocalyptic number.

23043039 is a deficient number, since it is larger than the sum of its proper divisors (7681017).

23043039 is an equidigital number, since it uses as much as digits as its factorization.

23043039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7681016.

The product of its (nonzero) digits is 1944, while the sum is 24.

The square root of 23043039 is about 4800.3165520620. The cubic root of 23043039 is about 284.5639746874.

The spelling of 23043039 in words is "twenty-three million, forty-three thousand, thirty-nine".