988589 has 8 divisors (see below), whose sum is σ = 1189440. Its totient is φ = 802656.

The previous prime is 988583. The next prime is 988591. The reversal of 988589 is 985889.

It is a happy number.

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 988589 - 2¹⁶ = 923053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (988583) 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, 3584 + ... + 3849.

It is an arithmetic number, because the mean of its divisors is an integer number (148680).

2⁹⁸⁸⁵⁸⁹ is an apocalyptic number.

It is an amenable number.

988589 is a deficient number, since it is larger than the sum of its proper divisors (200851).

988589 is a wasteful number, since it uses less digits than its factorization.

988589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7459.

The product of its digits is 207360, while the sum is 47.

The square root of 988589 is about 994.2781301024. The cubic root of 988589 is about 99.6181773031.

The spelling of 988589 in words is "nine hundred eighty-eight thousand, five hundred eighty-nine".