268543417 has 2 divisors, whose sum is σ = 268543418. Its totient is φ = 268543416.

The previous prime is 268543403. The next prime is 268543439. The reversal of 268543417 is 714345862.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 166513216 + 102030201 = 12904^2 + 10101^2 .

It is a cyclic number.

It is not a de Polignac number, because 268543417 - 2¹¹ = 268541369 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 268543417.

It is not a weakly prime, because it can be changed into another prime (268543487) 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, 134271708 + 134271709.

It is an arithmetic number, because the mean of its divisors is an integer number (134271709).

Almost surely, 2^268543417 is an apocalyptic number.

It is an amenable number.

268543417 is a deficient number, since it is larger than the sum of its proper divisors (1).

268543417 is an equidigital number, since it uses as much as digits as its factorization.

268543417 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 161280, while the sum is 40.

The square root of 268543417 is about 16387.2943770471. The cubic root of 268543417 is about 645.1660466275.

The spelling of 268543417 in words is "two hundred sixty-eight million, five hundred forty-three thousand, four hundred seventeen".