557989 has 8 divisors (see below), whose sum is σ = 587520. Its totient is φ = 529200.

The previous prime is 557987. The next prime is 558007. The reversal of 557989 is 989755.

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

It is a cyclic number.

It is not a de Polignac number, because 557989 - 2¹ = 557987 is a prime.

It is a super-2 number, since 2×557989² = 622703448242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (557981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1924 + ... + 2194.

It is an arithmetic number, because the mean of its divisors is an integer number (73440).

2⁵⁵⁷⁹⁸⁹ is an apocalyptic number.

It is an amenable number.

557989 is a deficient number, since it is larger than the sum of its proper divisors (29531).

557989 is a wasteful number, since it uses less digits than its factorization.

557989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371.

The product of its digits is 113400, while the sum is 43.

The square root of 557989 is about 746.9866129992. The cubic root of 557989 is about 82.3269221224.

The spelling of 557989 in words is "five hundred fifty-seven thousand, nine hundred eighty-nine".