565667 has 2 divisors, whose sum is σ = 565668. Its totient is φ = 565666.

The previous prime is 565661. The next prime is 565723. The reversal of 565667 is 766565.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 565667 - 2⁴ = 565651 is a prime.

It is not a weakly prime, because it can be changed into another prime (565661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 282833 + 282834.

It is an arithmetic number, because the mean of its divisors is an integer number (282834).

2⁵⁶⁵⁶⁶⁷ is an apocalyptic number.

565667 is a deficient number, since it is larger than the sum of its proper divisors (1).

565667 is an equidigital number, since it uses as much as digits as its factorization.

565667 is an evil number, because the sum of its binary digits is even.

The product of its digits is 37800, while the sum is 35.

The square root of 565667 is about 752.1083698510. The cubic root of 565667 is about 82.7028129156.

The spelling of 565667 in words is "five hundred sixty-five thousand, six hundred sixty-seven".