239998361 has 2 divisors, whose sum is σ = 239998362. Its totient is φ = 239998360.

The previous prime is 239998349. The next prime is 239998387. The reversal of 239998361 is 163899932.

239998361 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 173738761 + 66259600 = 13181^2 + 8140^2 .

It is a cyclic number.

It is not a de Polignac number, because 239998361 - 2¹⁰ = 239997337 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (239998331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119999180 + 119999181.

It is an arithmetic number, because the mean of its divisors is an integer number (119999181).

Almost surely, 2^239998361 is an apocalyptic number.

It is an amenable number.

239998361 is a deficient number, since it is larger than the sum of its proper divisors (1).

239998361 is an equidigital number, since it uses as much as digits as its factorization.

239998361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 629856, while the sum is 50.

The square root of 239998361 is about 15491.8804862418. The cubic root of 239998361 is about 621.4450865336.

The spelling of 239998361 in words is "two hundred thirty-nine million, nine hundred ninety-eight thousand, three hundred sixty-one".