565705979 has 4 divisors (see below), whose sum is σ = 578861976. Its totient is φ = 552549984.

The previous prime is 565705969. The next prime is 565705997. The reversal of 565705979 is 979507565.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 979507565 = 5 ⋅195901513.

It is a cyclic number.

It is not a de Polignac number, because 565705979 - 2¹⁶ = 565640443 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 565705979.

It is not an unprimeable number, because it can be changed into a prime (565705969) 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, 6577934 + ... + 6578019.

It is an arithmetic number, because the mean of its divisors is an integer number (144715494).

Almost surely, 2^565705979 is an apocalyptic number.

565705979 is a deficient number, since it is larger than the sum of its proper divisors (13155997).

565705979 is a wasteful number, since it uses less digits than its factorization.

565705979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13155996.

The product of its (nonzero) digits is 2976750, while the sum is 53.

The square root of 565705979 is about 23784.5743918196. The cubic root of 565705979 is about 827.0471250135.

The spelling of 565705979 in words is "five hundred sixty-five million, seven hundred five thousand, nine hundred seventy-nine".