264608069 has 4 divisors (see below), whose sum is σ = 288663360. Its totient is φ = 240552780.

The previous prime is 264608039. The next prime is 264608083. The reversal of 264608069 is 960806462.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 264608069 - 2²⁴ = 247830853 is a prime.

It is a super-2 number, since 2×264608069² = 140034860359817522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264608039) 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, 12027629 + ... + 12027650.

It is an arithmetic number, because the mean of its divisors is an integer number (72165840).

Almost surely, 2^264608069 is an apocalyptic number.

It is an amenable number.

264608069 is a deficient number, since it is larger than the sum of its proper divisors (24055291).

264608069 is a wasteful number, since it uses less digits than its factorization.

264608069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24055290.

The product of its (nonzero) digits is 124416, while the sum is 41.

The square root of 264608069 is about 16266.7780768043. The cubic root of 264608069 is about 641.9990141450. Note that the first 3 decimals are identical.

The spelling of 264608069 in words is "two hundred sixty-four million, six hundred eight thousand, sixty-nine".