264565969 has 4 divisors (see below), whose sum is σ = 264662640. Its totient is φ = 264469300.

The previous prime is 264565957. The next prime is 264566009. The reversal of 264565969 is 969565462.

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 264565969 - 2²⁷ = 130348241 is a prime.

It is a super-2 number, since 2×264565969² = 139990303905817922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (264565919) 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, 44107 + ... + 49744.

It is an arithmetic number, because the mean of its divisors is an integer number (66165660).

Almost surely, 2^264565969 is an apocalyptic number.

It is an amenable number.

264565969 is a deficient number, since it is larger than the sum of its proper divisors (96671).

264565969 is an equidigital number, since it uses as much as digits as its factorization.

264565969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96670.

The product of its digits is 3499200, while the sum is 52.

The square root of 264565969 is about 16265.4839768142. The cubic root of 264565969 is about 641.9649642989.

The spelling of 264565969 in words is "two hundred sixty-four million, five hundred sixty-five thousand, nine hundred sixty-nine".