268483289 has 2 divisors, whose sum is σ = 268483290. Its totient is φ = 268483288.

The previous prime is 268483253. The next prime is 268483291. The reversal of 268483289 is 982384862.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 262699264 + 5784025 = 16208^2 + 2405^2 .

It is a cyclic number.

It is not a de Polignac number, because 268483289 - 2¹⁶ = 268417753 is a prime.

Together with 268483291, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (268485289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134241644 + 134241645.

It is an arithmetic number, because the mean of its divisors is an integer number (134241645).

Almost surely, 2^268483289 is an apocalyptic number.

It is an amenable number.

268483289 is a deficient number, since it is larger than the sum of its proper divisors (1).

268483289 is an equidigital number, since it uses as much as digits as its factorization.

268483289 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1327104, while the sum is 50.

The square root of 268483289 is about 16385.4596822915. The cubic root of 268483289 is about 645.1178912366.

The spelling of 268483289 in words is "two hundred sixty-eight million, four hundred eighty-three thousand, two hundred eighty-nine".