268667 has 6 divisors (see below), whose sum is σ = 312588. Its totient is φ = 230244.

The previous prime is 268661. The next prime is 268693. The reversal of 268667 is 766862.

It is not a de Polignac number, because 268667 - 2¹⁰ = 267643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (268661) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2693 + ... + 2790.

It is an arithmetic number, because the mean of its divisors is an integer number (52098).

2²⁶⁸⁶⁶⁷ is an apocalyptic number.

268667 is a deficient number, since it is larger than the sum of its proper divisors (43921).

268667 is an equidigital number, since it uses as much as digits as its factorization.

268667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5497 (or 5490 counting only the distinct ones).

The product of its digits is 24192, while the sum is 35.

The square root of 268667 is about 518.3309753430. The cubic root of 268667 is about 64.5264999376.

The spelling of 268667 in words is "two hundred sixty-eight thousand, six hundred sixty-seven".