268872839 has 4 divisors (see below), whose sum is σ = 270483024. Its totient is φ = 267262656.

The previous prime is 268872823. The next prime is 268872841. The reversal of 268872839 is 938278862.

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 268872839 - 2⁴ = 268872823 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 (268872859) 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 in 3 ways as a sum of consecutive naturals, for example, 804842 + ... + 805175.

It is an arithmetic number, because the mean of its divisors is an integer number (67620756).

Almost surely, 2^268872839 is an apocalyptic number.

268872839 is a deficient number, since it is larger than the sum of its proper divisors (1610185).

268872839 is a wasteful number, since it uses less digits than its factorization.

268872839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1610184.

The product of its digits is 2322432, while the sum is 53.

The square root of 268872839 is about 16397.3424371146. The cubic root of 268872839 is about 645.4297470584.

The spelling of 268872839 in words is "two hundred sixty-eight million, eight hundred seventy-two thousand, eight hundred thirty-nine".