268465 has 4 divisors (see below), whose sum is σ = 322164. Its totient is φ = 214768.

The previous prime is 268459. The next prime is 268487. The reversal of 268465 is 564862.

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

It can be written as a sum of positive squares in 2 ways, for example, as 73984 + 194481 = 272^2 + 441^2 .

It is a cyclic number.

It is not a de Polignac number, because 268465 - 2¹¹ = 266417 is a prime.

It is a super-3 number, since 3×268465³ = 58047601276333875, which contains 333 as substring.

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.

268465 is a lucky number.

It is a congruent number.

It is an unprimeable number.

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, 26842 + ... + 26851.

It is an arithmetic number, because the mean of its divisors is an integer number (80541).

2²⁶⁸⁴⁶⁵ is an apocalyptic number.

It is an amenable number.

268465 is a deficient number, since it is larger than the sum of its proper divisors (53699).

268465 is an equidigital number, since it uses as much as digits as its factorization.

268465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53698.

The product of its digits is 11520, while the sum is 31.

The square root of 268465 is about 518.1360825111. The cubic root of 268465 is about 64.5103242492.

The spelling of 268465 in words is "two hundred sixty-eight thousand, four hundred sixty-five".