264217 has 6 divisors (see below), whose sum is σ = 272958. Its totient is φ = 255744.

The previous prime is 264211. The next prime is 264221. The reversal of 264217 is 712462.

It can be written as a sum of positive squares in 3 ways, for example, as 112896 + 151321 = 336^2 + 389^2 .

It is a de Polignac number, because none of the positive numbers 2^k-264217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (264211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1273 + ... + 1465.

It is an arithmetic number, because the mean of its divisors is an integer number (45493).

2²⁶⁴²¹⁷ is an apocalyptic number.

It is an amenable number.

264217 is a deficient number, since it is larger than the sum of its proper divisors (8741).

264217 is an equidigital number, since it uses as much as digits as its factorization.

264217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267 (or 230 counting only the distinct ones).

The product of its digits is 672, while the sum is 22.

The square root of 264217 is about 514.0204276096. The cubic root of 264217 is about 64.1682584264.

Adding to 264217 its reverse (712462), we get a palindrome (976679).

The spelling of 264217 in words is "two hundred sixty-four thousand, two hundred seventeen".