264047005 has 4 divisors (see below), whose sum is σ = 316856412. Its totient is φ = 211237600.

The previous prime is 264046957. The next prime is 264047023. The reversal of 264047005 is 500740462.

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 160047801 + 103999204 = 12651^2 + 10198^2 .

It is not a de Polignac number, because 264047005 - 2⁹ = 264046493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26404696 + ... + 26404705.

It is an arithmetic number, because the mean of its divisors is an integer number (79214103).

Almost surely, 2^264047005 is an apocalyptic number.

It is an amenable number.

264047005 is a deficient number, since it is larger than the sum of its proper divisors (52809407).

264047005 is an equidigital number, since it uses as much as digits as its factorization.

264047005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52809406.

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 264047005 is about 16249.5232237749. The cubic root of 264047005 is about 641.5449370103.

Adding to 264047005 its reverse (500740462), we get a palindrome (764787467).

The spelling of 264047005 in words is "two hundred sixty-four million, forty-seven thousand, five".