233934689 has 2 divisors, whose sum is σ = 233934690. Its totient is φ = 233934688.

The previous prime is 233934667. The next prime is 233934713. The reversal of 233934689 is 986439332.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 232867600 + 1067089 = 15260^2 + 1033^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-233934689 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (233934629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116967344 + 116967345.

It is an arithmetic number, because the mean of its divisors is an integer number (116967345).

Almost surely, 2^233934689 is an apocalyptic number.

It is an amenable number.

233934689 is a deficient number, since it is larger than the sum of its proper divisors (1).

233934689 is an equidigital number, since it uses as much as digits as its factorization.

233934689 is an evil number, because the sum of its binary digits is even.

The product of its digits is 839808, while the sum is 47.

The square root of 233934689 is about 15294.9236349843. The cubic root of 233934689 is about 616.1666786616.

It can be divided in two parts, 23393 and 4689, that added together give a palindrome (28082).

The spelling of 233934689 in words is "two hundred thirty-three million, nine hundred thirty-four thousand, six hundred eighty-nine".