43234643 has 2 divisors, whose sum is σ = 43234644. Its totient is φ = 43234642.

The previous prime is 43234637. The next prime is 43234649. The reversal of 43234643 is 34643234.

It is a balanced prime because it is at equal distance from previous prime (43234637) and next prime (43234649).

It is a cyclic number.

It is not a de Polignac number, because 43234643 - 2⁶ = 43234579 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (43234649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21617321 + 21617322.

It is an arithmetic number, because the mean of its divisors is an integer number (21617322).

Almost surely, 2^43234643 is an apocalyptic number.

43234643 is a deficient number, since it is larger than the sum of its proper divisors (1).

43234643 is an equidigital number, since it uses as much as digits as its factorization.

43234643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20736, while the sum is 29.

The square root of 43234643 is about 6575.3055442314. The cubic root of 43234643 is about 350.9758968089.

Adding to 43234643 its reverse (34643234), we get a palindrome (77877877).

The spelling of 43234643 in words is "forty-three million, two hundred thirty-four thousand, six hundred forty-three".