556679443 has 4 divisors (see below), whose sum is σ = 557658360. Its totient is φ = 555700528.

The previous prime is 556679429. The next prime is 556679449. The reversal of 556679443 is 344976655.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 556679443 - 2⁹ = 556678931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (556679449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 488605 + ... + 489742.

It is an arithmetic number, because the mean of its divisors is an integer number (139414590).

Almost surely, 2^556679443 is an apocalyptic number.

556679443 is a deficient number, since it is larger than the sum of its proper divisors (978917).

556679443 is an equidigital number, since it uses as much as digits as its factorization.

556679443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 978916.

The product of its digits is 2721600, while the sum is 49.

The square root of 556679443 is about 23594.0552470320. The cubic root of 556679443 is about 822.6246670047.

The spelling of 556679443 in words is "five hundred fifty-six million, six hundred seventy-nine thousand, four hundred forty-three".