566849 has 4 divisors (see below), whose sum is σ = 569136. Its totient is φ = 564564.

The previous prime is 566833. The next prime is 566851. The reversal of 566849 is 948665.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 948665 = 5 ⋅189733.

It is a cyclic number.

It is not a de Polignac number, because 566849 - 2⁴ = 566833 is a prime.

It is a Duffinian number.

566849 is a modest number, since divided by 849 gives 566 as remainder.

It is not an unprimeable number, because it can be changed into a prime (566879) 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 in 3 ways as a sum of consecutive naturals, for example, 719 + ... + 1284.

It is an arithmetic number, because the mean of its divisors is an integer number (142284).

2⁵⁶⁶⁸⁴⁹ is an apocalyptic number.

It is an amenable number.

566849 is a deficient number, since it is larger than the sum of its proper divisors (2287).

566849 is a wasteful number, since it uses less digits than its factorization.

566849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2286.

The product of its digits is 51840, while the sum is 38.

The square root of 566849 is about 752.8937508042. The cubic root of 566849 is about 82.7603772396.

The spelling of 566849 in words is "five hundred sixty-six thousand, eight hundred forty-nine".