234836813 has 2 divisors, whose sum is σ = 234836814. Its totient is φ = 234836812.

The previous prime is 234836801. The next prime is 234836857. The reversal of 234836813 is 318638432.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 123365449 + 111471364 = 11107^2 + 10558^2 .

It is a cyclic number.

It is not a de Polignac number, because 234836813 - 2²² = 230642509 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (234833813) 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, 117418406 + 117418407.

It is an arithmetic number, because the mean of its divisors is an integer number (117418407).

Almost surely, 2^234836813 is an apocalyptic number.

It is an amenable number.

234836813 is a deficient number, since it is larger than the sum of its proper divisors (1).

234836813 is an equidigital number, since it uses as much as digits as its factorization.

234836813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 82944, while the sum is 38.

The square root of 234836813 is about 15324.3862193564. The cubic root of 234836813 is about 616.9577053614.

The spelling of 234836813 in words is "two hundred thirty-four million, eight hundred thirty-six thousand, eight hundred thirteen".