239386908697 has 2 divisors, whose sum is σ = 239386908698. Its totient is φ = 239386908696.

The previous prime is 239386908679. The next prime is 239386908743. The reversal of 239386908697 is 796809683932.

239386908697 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with previous prime (239386908679) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 221562255616 + 17824653081 = 470704^2 + 133509^2 .

It is a cyclic number.

It is not a de Polignac number, because 239386908697 - 2³⁵ = 205027170329 is a prime.

It is not a weakly prime, because it can be changed into another prime (239386908197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119693454348 + 119693454349.

It is an arithmetic number, because the mean of its divisors is an integer number (119693454349).

Almost surely, 2^239386908697 is an apocalyptic number.

It is an amenable number.

239386908697 is a deficient number, since it is larger than the sum of its proper divisors (1).

239386908697 is an equidigital number, since it uses as much as digits as its factorization.

239386908697 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 211631616, while the sum is 70.

The spelling of 239386908697 in words is "two hundred thirty-nine billion, three hundred eighty-six million, nine hundred eight thousand, six hundred ninety-seven".