565479923 has 4 divisors (see below), whose sum is σ = 571833720. Its totient is φ = 559126128.

The previous prime is 565479907. The next prime is 565480009. The reversal of 565479923 is 329974565.

It is a happy number.

565479923 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 565479923 - 2⁴ = 565479907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (565479223) 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, 3176765 + ... + 3176942.

It is an arithmetic number, because the mean of its divisors is an integer number (142958430).

Almost surely, 2^565479923 is an apocalyptic number.

565479923 is a deficient number, since it is larger than the sum of its proper divisors (6353797).

565479923 is an equidigital number, since it uses as much as digits as its factorization.

565479923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6353796.

The product of its digits is 2041200, while the sum is 50.

The square root of 565479923 is about 23779.8217613169. The cubic root of 565479923 is about 826.9369477128.

The spelling of 565479923 in words is "five hundred sixty-five million, four hundred seventy-nine thousand, nine hundred twenty-three".