566722969 has 4 divisors (see below), whose sum is σ = 582039844. Its totient is φ = 551406096.

The previous prime is 566722963. The next prime is 566722973. The reversal of 566722969 is 969227665.

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 510172569 + 56550400 = 22587^2 + 7520^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-566722969 is a prime.

It is a super-2 number, since 2×566722969² = 642349847184349922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (566722963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7658382 + ... + 7658455.

It is an arithmetic number, because the mean of its divisors is an integer number (145509961).

Almost surely, 2^566722969 is an apocalyptic number.

It is an amenable number.

566722969 is a deficient number, since it is larger than the sum of its proper divisors (15316875).

566722969 is a wasteful number, since it uses less digits than its factorization.

566722969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15316874.

The product of its digits is 2449440, while the sum is 52.

The square root of 566722969 is about 23805.9439846438. The cubic root of 566722969 is about 827.5424324496.

The spelling of 566722969 in words is "five hundred sixty-six million, seven hundred twenty-two thousand, nine hundred sixty-nine".