234805447 has 2 divisors, whose sum is σ = 234805448. Its totient is φ = 234805446.

The previous prime is 234805429. The next prime is 234805451. The reversal of 234805447 is 744508432.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-234805447 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (234806447) 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, 117402723 + 117402724.

It is an arithmetic number, because the mean of its divisors is an integer number (117402724).

Almost surely, 2^234805447 is an apocalyptic number.

234805447 is a deficient number, since it is larger than the sum of its proper divisors (1).

234805447 is an equidigital number, since it uses as much as digits as its factorization.

234805447 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 107520, while the sum is 37.

The square root of 234805447 is about 15323.3627836712. The cubic root of 234805447 is about 616.9302361346.

The spelling of 234805447 in words is "two hundred thirty-four million, eight hundred five thousand, four hundred forty-seven".