264249973 has 4 divisors (see below), whose sum is σ = 284576908. Its totient is φ = 243923040.

The previous prime is 264249971. The next prime is 264249977. The reversal of 264249973 is 379942462.

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 52896529 + 211353444 = 7273^2 + 14538^2 .

It is a cyclic number.

It is not a de Polignac number, because 264249973 - 2¹ = 264249971 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264249971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10163448 + ... + 10163473.

It is an arithmetic number, because the mean of its divisors is an integer number (71144227).

Almost surely, 2^264249973 is an apocalyptic number.

It is an amenable number.

264249973 is a deficient number, since it is larger than the sum of its proper divisors (20326935).

264249973 is a wasteful number, since it uses less digits than its factorization.

264249973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20326934.

The product of its digits is 653184, while the sum is 46.

The square root of 264249973 is about 16255.7673765344. The cubic root of 264249973 is about 641.7092761120.

The spelling of 264249973 in words is "two hundred sixty-four million, two hundred forty-nine thousand, nine hundred seventy-three".