556867389 has 16 divisors (see below), whose sum is σ = 804081600. Its totient is φ = 340768896.

The previous prime is 556867379. The next prime is 556867403. The reversal of 556867389 is 983768655.

556867389 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 556867389 - 2⁷ = 556867261 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (556867319) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32904 + ... + 46865.

It is an arithmetic number, because the mean of its divisors is an integer number (50255100).

Almost surely, 2^556867389 is an apocalyptic number.

It is an amenable number.

556867389 is a deficient number, since it is larger than the sum of its proper divisors (247214211).

556867389 is a wasteful number, since it uses less digits than its factorization.

556867389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79964.

The product of its digits is 10886400, while the sum is 57.

The square root of 556867389 is about 23598.0378209715. The cubic root of 556867389 is about 822.7172347120.

The spelling of 556867389 in words is "five hundred fifty-six million, eight hundred sixty-seven thousand, three hundred eighty-nine".