556730 has 8 divisors (see below), whose sum is σ = 1002132. Its totient is φ = 222688.

The previous prime is 556727. The next prime is 556741. The reversal of 556730 is 37655.

It can be written as a sum of positive squares in 2 ways, for example, as 546121 + 10609 = 739^2 + 103^2 .

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 556730.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 556730.

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, 27827 + ... + 27846.

2⁵⁵⁶⁷³⁰ is an apocalyptic number.

556730 is a deficient number, since it is larger than the sum of its proper divisors (445402).

556730 is a wasteful number, since it uses less digits than its factorization.

556730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55680.

The product of its (nonzero) digits is 3150, while the sum is 26.

The square root of 556730 is about 746.1434178494. The cubic root of 556730 is about 82.2649569533.

The spelling of 556730 in words is "five hundred fifty-six thousand, seven hundred thirty".