233728399 has 2 divisors, whose sum is σ = 233728400. Its totient is φ = 233728398.

The previous prime is 233728343. The next prime is 233728433. The reversal of 233728399 is 993827332.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-233728399 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (233728309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116864199 + 116864200.

It is an arithmetic number, because the mean of its divisors is an integer number (116864200).

Almost surely, 2^233728399 is an apocalyptic number.

233728399 is a deficient number, since it is larger than the sum of its proper divisors (1).

233728399 is an equidigital number, since it uses as much as digits as its factorization.

233728399 is an evil number, because the sum of its binary digits is even.

The product of its digits is 489888, while the sum is 46.

The square root of 233728399 is about 15288.1784068606. The cubic root of 233728399 is about 615.9855078603.

The spelling of 233728399 in words is "two hundred thirty-three million, seven hundred twenty-eight thousand, three hundred ninety-nine".