561706 has 8 divisors (see below), whose sum is σ = 879264. Its totient is φ = 268620.

The previous prime is 561703. The next prime is 561713. The reversal of 561706 is 607165.

561706 = 54² + 55² + ... + 122².

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

It is not an unprimeable number, because it can be changed into a prime (561703) 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, 6060 + ... + 6151.

It is an arithmetic number, because the mean of its divisors is an integer number (109908).

2⁵⁶¹⁷⁰⁶ is an apocalyptic number.

561706 is a deficient number, since it is larger than the sum of its proper divisors (317558).

561706 is a wasteful number, since it uses less digits than its factorization.

561706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12236.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 561706 is about 749.4704797389. The cubic root of 561706 is about 82.5093224849.

The spelling of 561706 in words is "five hundred sixty-one thousand, seven hundred six".