268965317 has 2 divisors, whose sum is σ = 268965318. Its totient is φ = 268965316.

The previous prime is 268965293. The next prime is 268965337. The reversal of 268965317 is 713569862.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 158105476 + 110859841 = 12574^2 + 10529^2 .

It is a cyclic number.

It is not a de Polignac number, because 268965317 - 2¹⁶ = 268899781 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 (268965337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134482658 + 134482659.

It is an arithmetic number, because the mean of its divisors is an integer number (134482659).

Almost surely, 2^268965317 is an apocalyptic number.

It is an amenable number.

268965317 is a deficient number, since it is larger than the sum of its proper divisors (1).

268965317 is an equidigital number, since it uses as much as digits as its factorization.

268965317 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 544320, while the sum is 47.

The square root of 268965317 is about 16400.1621028574. The cubic root of 268965317 is about 645.5037364462.

The spelling of 268965317 in words is "two hundred sixty-eight million, nine hundred sixty-five thousand, three hundred seventeen".