268856983 has 4 divisors (see below), whose sum is σ = 269354488. Its totient is φ = 268359480.

The previous prime is 268856981. The next prime is 268857007. The reversal of 268856983 is 389658862.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 268856983 - 2¹ = 268856981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268856981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 247941 + ... + 249022.

It is an arithmetic number, because the mean of its divisors is an integer number (67338622).

Almost surely, 2^268856983 is an apocalyptic number.

268856983 is a deficient number, since it is larger than the sum of its proper divisors (497505).

268856983 is an equidigital number, since it uses as much as digits as its factorization.

268856983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497504.

The product of its digits is 4976640, while the sum is 55.

The square root of 268856983 is about 16396.8589370038. The cubic root of 268856983 is about 645.4170593566.

The spelling of 268856983 in words is "two hundred sixty-eight million, eight hundred fifty-six thousand, nine hundred eighty-three".