234345691 has 2 divisors, whose sum is σ = 234345692. Its totient is φ = 234345690.

The previous prime is 234345667. The next prime is 234345721. The reversal of 234345691 is 196543432.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 234345691 - 2⁹ = 234345179 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 234345691.

It is not a weakly prime, because it can be changed into another prime (234345611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117172845 + 117172846.

It is an arithmetic number, because the mean of its divisors is an integer number (117172846).

Almost surely, 2^234345691 is an apocalyptic number.

234345691 is a deficient number, since it is larger than the sum of its proper divisors (1).

234345691 is an equidigital number, since it uses as much as digits as its factorization.

234345691 is an evil number, because the sum of its binary digits is even.

The product of its digits is 77760, while the sum is 37.

The square root of 234345691 is about 15308.3536345356. The cubic root of 234345691 is about 616.5273171700.

The spelling of 234345691 in words is "two hundred thirty-four million, three hundred forty-five thousand, six hundred ninety-one".