268867 has 4 divisors (see below), whose sum is σ = 270040. Its totient is φ = 267696.

The previous prime is 268861. The next prime is 268883. The reversal of 268867 is 768862.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-268867 is a prime.

It is a d-powerful number, because it can be written as 2² + 6 + 8⁴ + 8⁶ + 6³ + 7⁴ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (268861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 117 + ... + 742.

It is an arithmetic number, because the mean of its divisors is an integer number (67510).

2²⁶⁸⁸⁶⁷ is an apocalyptic number.

268867 is a deficient number, since it is larger than the sum of its proper divisors (1173).

268867 is an equidigital number, since it uses as much as digits as its factorization.

268867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1172.

The product of its digits is 32256, while the sum is 37.

The square root of 268867 is about 518.5238663745. The cubic root of 268867 is about 64.5425074848.

The spelling of 268867 in words is "two hundred sixty-eight thousand, eight hundred sixty-seven".