264063865 has 8 divisors (see below), whose sum is σ = 341251848. Its totient is φ = 195000960.

The previous prime is 264063841. The next prime is 264063893. The reversal of 264063865 is 568360462.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 5400976 + 258662889 = 2324^2 + 16083^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 264063865 - 2¹¹ = 264061817 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2031196 + ... + 2031325.

It is an arithmetic number, because the mean of its divisors is an integer number (42656481).

Almost surely, 2^264063865 is an apocalyptic number.

It is an amenable number.

264063865 is a deficient number, since it is larger than the sum of its proper divisors (77187983).

264063865 is a wasteful number, since it uses less digits than its factorization.

264063865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4062539.

The product of its (nonzero) digits is 207360, while the sum is 40.

The square root of 264063865 is about 16250.0419999457. The cubic root of 264063865 is about 641.5585914193.

The spelling of 264063865 in words is "two hundred sixty-four million, sixty-three thousand, eight hundred sixty-five".