556867 has 2 divisors, whose sum is σ = 556868. Its totient is φ = 556866.

The previous prime is 556861. The next prime is 556883. The reversal of 556867 is 768655.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 556867 - 2³ = 556859 is a prime.

It is an Ulam number.

556867 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (556861) 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 as a sum of consecutive naturals, namely, 278433 + 278434.

It is an arithmetic number, because the mean of its divisors is an integer number (278434).

2⁵⁵⁶⁸⁶⁷ is an apocalyptic number.

556867 is a deficient number, since it is larger than the sum of its proper divisors (1).

556867 is an equidigital number, since it uses as much as digits as its factorization.

556867 is an odious number, because the sum of its binary digits is odd.

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

The square root of 556867 is about 746.2352176090. The cubic root of 556867 is about 82.2717043142.

The spelling of 556867 in words is "five hundred fifty-six thousand, eight hundred sixty-seven".