565427 has 2 divisors, whose sum is σ = 565428. Its totient is φ = 565426.

The previous prime is 565393. The next prime is 565429. The reversal of 565427 is 724565.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 565427 - 2⁸ = 565171 is a prime.

Together with 565429, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 565427.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 565427.

It is not a weakly prime, because it can be changed into another prime (565429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 282713 + 282714.

It is an arithmetic number, because the mean of its divisors is an integer number (282714).

2⁵⁶⁵⁴²⁷ is an apocalyptic number.

565427 is a deficient number, since it is larger than the sum of its proper divisors (1).

565427 is an equidigital number, since it uses as much as digits as its factorization.

565427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8400, while the sum is 29.

The square root of 565427 is about 751.9488014486. The cubic root of 565427 is about 82.6911149361.

The spelling of 565427 in words is "five hundred sixty-five thousand, four hundred twenty-seven".