565387 has 2 divisors, whose sum is σ = 565388. Its totient is φ = 565386.

The previous prime is 565381. The next prime is 565391. The reversal of 565387 is 783565.

It is a happy number.

565387 is an esthetic number in base 7, because in such base its adjacent digits differ by 1.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 565387 - 2³ = 565379 is a prime.

It is not a weakly prime, because it can be changed into another prime (565381) 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 as a sum of consecutive naturals, namely, 282693 + 282694.

It is an arithmetic number, because the mean of its divisors is an integer number (282694).

2⁵⁶⁵³⁸⁷ is an apocalyptic number.

565387 is a deficient number, since it is larger than the sum of its proper divisors (1).

565387 is an equidigital number, since it uses as much as digits as its factorization.

565387 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25200, while the sum is 34.

The square root of 565387 is about 751.9222034227. The cubic root of 565387 is about 82.6891649511.

The spelling of 565387 in words is "five hundred sixty-five thousand, three hundred eighty-seven".