988920 has 96 divisors (see below), whose sum is σ = 3341520. Its totient is φ = 253440.

The previous prime is 988909. The next prime is 988937. The reversal of 988920 is 29889.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

988920 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 23 ways as a sum of consecutive naturals, for example, 14727 + ... + 14793.

2⁹⁸⁸⁹²⁰ is an apocalyptic number.

988920 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 988920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1670760).

988920 is an abundant number, since it is smaller than the sum of its proper divisors (2352600).

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

988920 is a wasteful number, since it uses less digits than its factorization.

988920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125 (or 118 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 988920 is about 994.4445685909. Note that the first 3 decimals coincide. The cubic root of 988920 is about 99.6292941364.

The spelling of 988920 in words is "nine hundred eighty-eight thousand, nine hundred twenty".