264385867 has 4 divisors (see below), whose sum is σ = 264455856. Its totient is φ = 264315880.

The previous prime is 264385861. The next prime is 264385871. The reversal of 264385867 is 768583462.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 264385867 - 2²⁷ = 130168139 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 264385867.

It is not an unprimeable number, because it can be changed into a prime (264385861) 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, 28984 + ... + 36997.

It is an arithmetic number, because the mean of its divisors is an integer number (66113964).

Almost surely, 2^264385867 is an apocalyptic number.

264385867 is a deficient number, since it is larger than the sum of its proper divisors (69989).

264385867 is an equidigital number, since it uses as much as digits as its factorization.

264385867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69988.

The product of its digits is 1935360, while the sum is 49.

The square root of 264385867 is about 16259.9467096298. The cubic root of 264385867 is about 641.8192597196.

The spelling of 264385867 in words is "two hundred sixty-four million, three hundred eighty-five thousand, eight hundred sixty-seven".