565397 has 12 divisors (see below), whose sum is σ = 675360. Its totient is φ = 463536.

The previous prime is 565393. The next prime is 565427. The reversal of 565397 is 793565.

It is not a de Polignac number, because 565397 - 2² = 565393 is a prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 565397.

It is not an unprimeable number, because it can be changed into a prime (565391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9554 + ... + 9612.

It is an arithmetic number, because the mean of its divisors is an integer number (56280).

2⁵⁶⁵³⁹⁷ is an apocalyptic number.

It is an amenable number.

565397 is a deficient number, since it is larger than the sum of its proper divisors (109963).

565397 is an equidigital number, since it uses as much as digits as its factorization.

565397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140 (or 103 counting only the distinct ones).

The product of its digits is 28350, while the sum is 35.

The square root of 565397 is about 751.9288530174. The cubic root of 565397 is about 82.6896524560.

The spelling of 565397 in words is "five hundred sixty-five thousand, three hundred ninety-seven".