23043437 has 2 divisors, whose sum is σ = 23043438. Its totient is φ = 23043436.

The previous prime is 23043407. The next prime is 23043439. The reversal of 23043437 is 73434032.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22905796 + 137641 = 4786^2 + 371^2 .

It is a cyclic number.

It is not a de Polignac number, because 23043437 - 2¹⁶ = 22977901 is a prime.

Together with 23043439, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23043439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11521718 + 11521719.

It is an arithmetic number, because the mean of its divisors is an integer number (11521719).

Almost surely, 2^23043437 is an apocalyptic number.

It is an amenable number.

23043437 is a deficient number, since it is larger than the sum of its proper divisors (1).

23043437 is an equidigital number, since it uses as much as digits as its factorization.

23043437 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 26.

The square root of 23043437 is about 4800.3580074824. The cubic root of 23043437 is about 284.5656130102.

Adding to 23043437 its reverse (73434032), we get a palindrome (96477469).

The spelling of 23043437 in words is "twenty-three million, forty-three thousand, four hundred thirty-seven".