268968817 has 4 divisors (see below), whose sum is σ = 289658740. Its totient is φ = 248278896.

The previous prime is 268968797. The next prime is 268968841. The reversal of 268968817 is 718869862.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 37442161 + 231526656 = 6119^2 + 15216^2 .

It is a cyclic number.

It is not a de Polignac number, because 268968817 - 2¹⁵ = 268936049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (268968857) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10344942 + ... + 10344967.

It is an arithmetic number, because the mean of its divisors is an integer number (72414685).

Almost surely, 2^268968817 is an apocalyptic number.

It is an amenable number.

268968817 is a deficient number, since it is larger than the sum of its proper divisors (20689923).

268968817 is a wasteful number, since it uses less digits than its factorization.

268968817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20689922.

The product of its digits is 2322432, while the sum is 55.

The square root of 268968817 is about 16400.2688087726. The cubic root of 268968817 is about 645.5065363776.

The spelling of 268968817 in words is "two hundred sixty-eight million, nine hundred sixty-eight thousand, eight hundred seventeen".