889557 has 4 divisors (see below), whose sum is σ = 1186080. Its totient is φ = 593036.

The previous prime is 889519. The next prime is 889579. The reversal of 889557 is 755988.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 889557 - 2⁷ = 889429 is a prime.

It is a D-number.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (889597) 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, 148257 + ... + 148262.

It is an arithmetic number, because the mean of its divisors is an integer number (296520).

2⁸⁸⁹⁵⁵⁷ is an apocalyptic number.

It is an amenable number.

889557 is a deficient number, since it is larger than the sum of its proper divisors (296523).

889557 is a wasteful number, since it uses less digits than its factorization.

889557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296522.

The product of its digits is 100800, while the sum is 42.

The square root of 889557 is about 943.1632944512. The cubic root of 889557 is about 96.1740548950.

The spelling of 889557 in words is "eight hundred eighty-nine thousand, five hundred fifty-seven".