264817 has 4 divisors (see below), whose sum is σ = 302656. Its totient is φ = 226980.

The previous prime is 264811. The next prime is 264827. The reversal of 264817 is 718462.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 718462 = 2 ⋅359231.

It is a cyclic number.

It is not a de Polignac number, because 264817 - 2¹⁵ = 232049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (264811) 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, 18909 + ... + 18922.

It is an arithmetic number, because the mean of its divisors is an integer number (75664).

2²⁶⁴⁸¹⁷ is an apocalyptic number.

It is an amenable number.

264817 is a deficient number, since it is larger than the sum of its proper divisors (37839).

264817 is an equidigital number, since it uses as much as digits as its factorization.

264817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37838.

The product of its digits is 2688, while the sum is 28.

The square root of 264817 is about 514.6037310397. The cubic root of 264817 is about 64.2167940977.

It can be divided in two parts, 264 and 817, that added together give a triangular number (1081 = T₄₆).

The spelling of 264817 in words is "two hundred sixty-four thousand, eight hundred seventeen".