565966 has 8 divisors (see below), whose sum is σ = 868824. Its totient is φ = 276360.

The previous prime is 565937. The next prime is 565973. The reversal of 565966 is 669565.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3205 + ... + 3376.

It is an arithmetic number, because the mean of its divisors is an integer number (108603).

2⁵⁶⁵⁹⁶⁶ is an apocalyptic number.

565966 is a deficient number, since it is larger than the sum of its proper divisors (302858).

565966 is a wasteful number, since it uses less digits than its factorization.

565966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6626.

The product of its digits is 48600, while the sum is 37.

The square root of 565966 is about 752.3071181373. The cubic root of 565966 is about 82.7173820204.

The spelling of 565966 in words is "five hundred sixty-five thousand, nine hundred sixty-six".