988680 has 128 divisors (see below), whose sum is σ = 3732480. Its totient is φ = 203520.

The previous prime is 988661. The next prime is 988681. The reversal of 988680 is 86889.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (988681) by changing a digit.

988680 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9187 + ... + 9293.

It is an arithmetic number, because the mean of its divisors is an integer number (29160).

2⁹⁸⁸⁶⁸⁰ 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 988680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1866240).

988680 is an abundant number, since it is smaller than the sum of its proper divisors (2743800).

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

988680 is a wasteful number, since it uses less digits than its factorization.

988680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139 (or 135 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 39.

The square root of 988680 is about 994.3238908927. The cubic root of 988680 is about 99.6212338399.

It can be divided in two parts, 98 and 8680, that added together give a palindrome (8778).

The spelling of 988680 in words is "nine hundred eighty-eight thousand, six hundred eighty".