264465217 has 4 divisors (see below), whose sum is σ = 264731476. Its totient is φ = 264198960.

The previous prime is 264465139. The next prime is 264465221. The reversal of 264465217 is 712564462.

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 253733041 + 10732176 = 15929^2 + 3276^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-264465217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (264465517) 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, 131634 + ... + 133627.

It is an arithmetic number, because the mean of its divisors is an integer number (66182869).

Almost surely, 2^264465217 is an apocalyptic number.

It is an amenable number.

264465217 is a deficient number, since it is larger than the sum of its proper divisors (266259).

264465217 is an equidigital number, since it uses as much as digits as its factorization.

264465217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266258.

The product of its digits is 80640, while the sum is 37.

The square root of 264465217 is about 16262.3865714722. The cubic root of 264465217 is about 641.8834629296.

The spelling of 264465217 in words is "two hundred sixty-four million, four hundred sixty-five thousand, two hundred seventeen".