264873913 has 4 divisors (see below), whose sum is σ = 269871588. Its totient is φ = 259876240.

The previous prime is 264873893. The next prime is 264873967. The reversal of 264873913 is 319378462.

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 118657449 + 146216464 = 10893^2 + 12092^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-264873913 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 264873913.

It is not an unprimeable number, because it can be changed into a prime (264873013) 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, 2498758 + ... + 2498863.

It is an arithmetic number, because the mean of its divisors is an integer number (67467897).

Almost surely, 2^264873913 is an apocalyptic number.

It is an amenable number.

264873913 is a deficient number, since it is larger than the sum of its proper divisors (4997675).

264873913 is an equidigital number, since it uses as much as digits as its factorization.

264873913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4997674.

The product of its digits is 217728, while the sum is 43.

The square root of 264873913 is about 16274.9474039089. The cubic root of 264873913 is about 642.2139414047.

The spelling of 264873913 in words is "two hundred sixty-four million, eight hundred seventy-three thousand, nine hundred thirteen".