565671 has 8 divisors (see below), whose sum is σ = 759664. Its totient is φ = 374400.

The previous prime is 565667. The next prime is 565723. The reversal of 565671 is 176565.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 565671 - 2² = 565667 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (565651) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130 + ... + 1071.

It is an arithmetic number, because the mean of its divisors is an integer number (94958).

2⁵⁶⁵⁶⁷¹ is an apocalyptic number.

565671 is a deficient number, since it is larger than the sum of its proper divisors (193993).

565671 is a wasteful number, since it uses less digits than its factorization.

565671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1361.

The product of its digits is 6300, while the sum is 30.

The square root of 565671 is about 752.1110290376. Note that the first 3 decimals coincide. The cubic root of 565671 is about 82.7030078539.

The spelling of 565671 in words is "five hundred sixty-five thousand, six hundred seventy-one".