264447 has 6 divisors (see below), whose sum is σ = 381992. Its totient is φ = 176292.

The previous prime is 264443. The next prime is 264463. The reversal of 264447 is 744462.

It is not a de Polignac number, because 264447 - 2² = 264443 is a prime.

It is a d-powerful number, because it can be written as 2¹¹ + 6³ + 4² + 4² + 4⁹ + 7 .

It is a Duffinian number.

264447 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 264447.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264443) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14683 + ... + 14700.

2²⁶⁴⁴⁴⁷ is an apocalyptic number.

264447 is a deficient number, since it is larger than the sum of its proper divisors (117545).

264447 is a wasteful number, since it uses less digits than its factorization.

264447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29389 (or 29386 counting only the distinct ones).

The product of its digits is 5376, while the sum is 27.

The square root of 264447 is about 514.2441054597. The cubic root of 264447 is about 64.1868724432.

The spelling of 264447 in words is "two hundred sixty-four thousand, four hundred forty-seven".