233828813 has 2 divisors, whose sum is σ = 233828814. Its totient is φ = 233828812.

The previous prime is 233828767. The next prime is 233828821. The reversal of 233828813 is 318828332.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 193404649 + 40424164 = 13907^2 + 6358^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-233828813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (233828213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116914406 + 116914407.

It is an arithmetic number, because the mean of its divisors is an integer number (116914407).

Almost surely, 2^233828813 is an apocalyptic number.

It is an amenable number.

233828813 is a deficient number, since it is larger than the sum of its proper divisors (1).

233828813 is an equidigital number, since it uses as much as digits as its factorization.

233828813 is an evil number, because the sum of its binary digits is even.

The product of its digits is 55296, while the sum is 38.

The square root of 233828813 is about 15291.4620949077. The cubic root of 233828813 is about 616.0737081151.

The spelling of 233828813 in words is "two hundred thirty-three million, eight hundred twenty-eight thousand, eight hundred thirteen".