232405643 has 2 divisors, whose sum is σ = 232405644. Its totient is φ = 232405642.

The previous prime is 232405577. The next prime is 232405673. The reversal of 232405643 is 346504232.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 232405643 - 2⁸ = 232405387 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (232405673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116202821 + 116202822.

It is an arithmetic number, because the mean of its divisors is an integer number (116202822).

Almost surely, 2^232405643 is an apocalyptic number.

232405643 is a deficient number, since it is larger than the sum of its proper divisors (1).

232405643 is an equidigital number, since it uses as much as digits as its factorization.

232405643 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 29.

The square root of 232405643 is about 15244.8562800703. The cubic root of 232405643 is about 614.8212784047.

Adding to 232405643 its reverse (346504232), we get a palindrome (578909875).

The spelling of 232405643 in words is "two hundred thirty-two million, four hundred five thousand, six hundred forty-three".