268871 has 4 divisors (see below), whose sum is σ = 272952. Its totient is φ = 264792.

The previous prime is 268861. The next prime is 268883. The reversal of 268871 is 178862.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 178862 = 2 ⋅89431.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-268871 is a prime.

It is a super-2 number, since 2×268871² = 144583229282, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 268871.

It is not an unprimeable number, because it can be changed into a prime (268811) 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, 1940 + ... + 2073.

It is an arithmetic number, because the mean of its divisors is an integer number (68238).

2²⁶⁸⁸⁷¹ is an apocalyptic number.

268871 is a deficient number, since it is larger than the sum of its proper divisors (4081).

268871 is an equidigital number, since it uses as much as digits as its factorization.

268871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4080.

The product of its digits is 5376, while the sum is 32.

The square root of 268871 is about 518.5277234633. The cubic root of 268871 is about 64.5428275547.

Subtracting from 268871 its reverse (178862), we obtain a palindrome (90009).

The spelling of 268871 in words is "two hundred sixty-eight thousand, eight hundred seventy-one".