268968839 has 4 divisors (see below), whose sum is σ = 270040680. Its totient is φ = 267897000.

The previous prime is 268968797. The next prime is 268968841. The reversal of 268968839 is 938869862.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-268968839 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 (268968859) 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, 535544 + ... + 536045.

It is an arithmetic number, because the mean of its divisors is an integer number (67510170).

Almost surely, 2^268968839 is an apocalyptic number.

268968839 is a deficient number, since it is larger than the sum of its proper divisors (1071841).

268968839 is a wasteful number, since it uses less digits than its factorization.

268968839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1071840.

The product of its digits is 8957952, while the sum is 59.

The square root of 268968839 is about 16400.2694794933. The cubic root of 268968839 is about 645.5065539771.

The spelling of 268968839 in words is "two hundred sixty-eight million, nine hundred sixty-eight thousand, eight hundred thirty-nine".