234405047 has 2 divisors, whose sum is σ = 234405048. Its totient is φ = 234405046.

The previous prime is 234405037. The next prime is 234405079. The reversal of 234405047 is 740504432.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 234405047 - 2⁸ = 234404791 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (234405037) 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 as a sum of consecutive naturals, namely, 117202523 + 117202524.

It is an arithmetic number, because the mean of its divisors is an integer number (117202524).

Almost surely, 2^234405047 is an apocalyptic number.

234405047 is a deficient number, since it is larger than the sum of its proper divisors (1).

234405047 is an equidigital number, since it uses as much as digits as its factorization.

234405047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13440, while the sum is 29.

The square root of 234405047 is about 15310.2921918558. The cubic root of 234405047 is about 616.5793649320.

Adding to 234405047 its reverse (740504432), we get a palindrome (974909479).

The spelling of 234405047 in words is "two hundred thirty-four million, four hundred five thousand, forty-seven".