268447 has 4 divisors (see below), whose sum is σ = 284256. Its totient is φ = 252640.

The previous prime is 268439. The next prime is 268459. The reversal of 268447 is 744862.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 268447 - 2³ = 268439 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268487) 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, 7879 + ... + 7912.

It is an arithmetic number, because the mean of its divisors is an integer number (71064).

2²⁶⁸⁴⁴⁷ is an apocalyptic number.

268447 is a deficient number, since it is larger than the sum of its proper divisors (15809).

268447 is a wasteful number, since it uses less digits than its factorization.

268447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15808.

The product of its digits is 10752, while the sum is 31.

The square root of 268447 is about 518.1187122658. The cubic root of 268447 is about 64.5088824576.

The spelling of 268447 in words is "two hundred sixty-eight thousand, four hundred forty-seven".