268611 has 8 divisors (see below), whose sum is σ = 409344. Its totient is φ = 153480.

The previous prime is 268607. The next prime is 268613. The reversal of 268611 is 116862.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 268611 - 2² = 268607 is a prime.

It is an Ulam number.

268611 is a lucky number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 268611.

It is not an unprimeable number, because it can be changed into a prime (268613) 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 7 ways as a sum of consecutive naturals, for example, 6375 + ... + 6416.

It is an arithmetic number, because the mean of its divisors is an integer number (51168).

2²⁶⁸⁶¹¹ is an apocalyptic number.

268611 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

268611 is a deficient number, since it is larger than the sum of its proper divisors (140733).

268611 is a wasteful number, since it uses less digits than its factorization.

268611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12801.

The product of its digits is 576, while the sum is 24.

The square root of 268611 is about 518.2769529894. The cubic root of 268611 is about 64.5220164009.

It can be divided in two parts, 26861 and 1, that added together give a palindrome (26862).

The spelling of 268611 in words is "two hundred sixty-eight thousand, six hundred eleven".