239575993 has 2 divisors, whose sum is σ = 239575994. Its totient is φ = 239575992.

The previous prime is 239575961. The next prime is 239576011. The reversal of 239575993 is 399575932.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 239259024 + 316969 = 15468^2 + 563^2 .

It is a cyclic number.

It is not a de Polignac number, because 239575993 - 2⁵ = 239575961 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 239575993.

It is not a weakly prime, because it can be changed into another prime (239575093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119787996 + 119787997.

It is an arithmetic number, because the mean of its divisors is an integer number (119787997).

Almost surely, 2^239575993 is an apocalyptic number.

It is an amenable number.

239575993 is a deficient number, since it is larger than the sum of its proper divisors (1).

239575993 is an equidigital number, since it uses as much as digits as its factorization.

239575993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2296350, while the sum is 52.

The square root of 239575993 is about 15478.2425681988. The cubic root of 239575993 is about 621.0803164789.

The spelling of 239575993 in words is "two hundred thirty-nine million, five hundred seventy-five thousand, nine hundred ninety-three".