268717 has 4 divisors (see below), whose sum is σ = 282880. Its totient is φ = 254556.

The previous prime is 268693. The next prime is 268721. The reversal of 268717 is 717862.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 717862 = 2 ⋅358931.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-268717 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 (268747) 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, 7053 + ... + 7090.

It is an arithmetic number, because the mean of its divisors is an integer number (70720).

2²⁶⁸⁷¹⁷ is an apocalyptic number.

It is an amenable number.

268717 is a deficient number, since it is larger than the sum of its proper divisors (14163).

268717 is a wasteful number, since it uses less digits than its factorization.

268717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14162.

The product of its digits is 4704, while the sum is 31.

The square root of 268717 is about 518.3792048298. The cubic root of 268717 is about 64.5305025690.

It can be divided in two parts, 2687 and 17, that added together give a square (2704 = 52²).

The spelling of 268717 in words is "two hundred sixty-eight thousand, seven hundred seventeen".