235775993 has 2 divisors, whose sum is σ = 235775994. Its totient is φ = 235775992.

The previous prime is 235775983. The next prime is 235775999. The reversal of 235775993 is 399577532.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 219839929 + 15936064 = 14827^2 + 3992^2 .

It is a cyclic number.

It is not a de Polignac number, because 235775993 - 2⁶ = 235775929 is a prime.

It is not a weakly prime, because it can be changed into another prime (235775999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117887996 + 117887997.

It is an arithmetic number, because the mean of its divisors is an integer number (117887997).

Almost surely, 2^235775993 is an apocalyptic number.

It is an amenable number.

235775993 is a deficient number, since it is larger than the sum of its proper divisors (1).

235775993 is an equidigital number, since it uses as much as digits as its factorization.

235775993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1786050, while the sum is 50.

The square root of 235775993 is about 15354.9989579941. The cubic root of 235775993 is about 617.7790751748.

The spelling of 235775993 in words is "two hundred thirty-five million, seven hundred seventy-five thousand, nine hundred ninety-three".