989560 has 64 divisors (see below), whose sum is σ = 2630880. Its totient is φ = 330240.

The previous prime is 989557. The next prime is 989561. The reversal of 989560 is 65989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (989561) 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 15 ways as a sum of consecutive naturals, for example, 5634 + ... + 5806.

2⁹⁸⁹⁵⁶⁰ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 989560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1315440).

989560 is an abundant number, since it is smaller than the sum of its proper divisors (1641320).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

989560 is a wasteful number, since it uses less digits than its factorization.

989560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208 (or 204 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 37.

The square root of 989560 is about 994.7663042142. The cubic root of 989560 is about 99.6507818867.

The spelling of 989560 in words is "nine hundred eighty-nine thousand, five hundred sixty".