706566 has 16 divisors (see below), whose sum is σ = 1615104. Its totient is φ = 201864.

The previous prime is 706561. The next prime is 706597. The reversal of 706566 is 665607.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (706561) by changing a digit.

706566 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 7 ways as a sum of consecutive naturals, for example, 8370 + ... + 8453.

It is an arithmetic number, because the mean of its divisors is an integer number (100944).

2⁷⁰⁶⁵⁶⁶ is an apocalyptic number.

706566 is an abundant number, since it is smaller than the sum of its proper divisors (908538).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

706566 is a wasteful number, since it uses less digits than its factorization.

706566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16835.

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 706566 is about 840.5748033340. The cubic root of 706566 is about 89.0671546352.

The spelling of 706566 in words is "seven hundred six thousand, five hundred sixty-six".