556678 has 8 divisors (see below), whose sum is σ = 854568. Its totient is φ = 271824.

The previous prime is 556651. The next prime is 556679. The reversal of 556678 is 876655.

556678 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (556679) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3151 + ... + 3322.

It is an arithmetic number, because the mean of its divisors is an integer number (106821).

2⁵⁵⁶⁶⁷⁸ is an apocalyptic number.

556678 is a deficient number, since it is larger than the sum of its proper divisors (297890).

556678 is a wasteful number, since it uses less digits than its factorization.

556678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6518.

The product of its digits is 50400, while the sum is 37.

The square root of 556678 is about 746.1085711879. The cubic root of 556678 is about 82.2623956214.

The spelling of 556678 in words is "five hundred fifty-six thousand, six hundred seventy-eight".