988558 has 8 divisors (see below), whose sum is σ = 1488960. Its totient is φ = 492240.

The previous prime is 988549. The next prime is 988571. The reversal of 988558 is 855889.

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

It is a congruent number.

It is an unprimeable number.

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, 318 + ... + 1441.

It is an arithmetic number, because the mean of its divisors is an integer number (186120).

2⁹⁸⁸⁵⁵⁸ is an apocalyptic number.

988558 is a deficient number, since it is larger than the sum of its proper divisors (500402).

988558 is a wasteful number, since it uses less digits than its factorization.

988558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2042.

The product of its digits is 115200, while the sum is 43.

The square root of 988558 is about 994.2625407809. The cubic root of 988558 is about 99.6171360225.

The spelling of 988558 in words is "nine hundred eighty-eight thousand, five hundred fifty-eight".