988784 has 20 divisors (see below), whose sum is σ = 1982760. Its totient is φ = 477120.

The previous prime is 988783. The next prime is 988789. The reversal of 988784 is 487889.

It is a happy number.

988784 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (988783) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 602 + ... + 1529.

It is an arithmetic number, because the mean of its divisors is an integer number (99138).

2⁹⁸⁸⁷⁸⁴ is an apocalyptic number.

It is an amenable number.

988784 is an abundant number, since it is smaller than the sum of its proper divisors (993976).

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

988784 is a wasteful number, since it uses less digits than its factorization.

988784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2168 (or 2162 counting only the distinct ones).

The product of its digits is 129024, while the sum is 44.

The square root of 988784 is about 994.3761863601. The cubic root of 988784 is about 99.6247267952.

The spelling of 988784 in words is "nine hundred eighty-eight thousand, seven hundred eighty-four".