233645393 has 2 divisors, whose sum is σ = 233645394. Its totient is φ = 233645392.

The previous prime is 233645389. The next prime is 233645473. The reversal of 233645393 is 393546332.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 200732224 + 32913169 = 14168^2 + 5737^2 .

It is a cyclic number.

It is not a de Polignac number, because 233645393 - 2² = 233645389 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (233645353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116822696 + 116822697.

It is an arithmetic number, because the mean of its divisors is an integer number (116822697).

Almost surely, 2^233645393 is an apocalyptic number.

It is an amenable number.

233645393 is a deficient number, since it is larger than the sum of its proper divisors (1).

233645393 is an equidigital number, since it uses as much as digits as its factorization.

233645393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 174960, while the sum is 38.

The square root of 233645393 is about 15285.4634538832. The cubic root of 233645393 is about 615.9125791286.

The spelling of 233645393 in words is "two hundred thirty-three million, six hundred forty-five thousand, three hundred ninety-three".