988334784 has 140 divisors (see below), whose sum is σ = 2966322744. Its totient is φ = 325334016.

The previous prime is 988334779. The next prime is 988334791. The reversal of 988334784 is 487433889.

988334784 is a `hidden beast` number, since 98 + 83 + 3 + 478 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 988334784.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 429124 + ... + 431420.

Almost surely, 2^988334784 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 988334784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1483161372).

988334784 is an abundant number, since it is smaller than the sum of its proper divisors (1977987960).

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

988334784 is a wasteful number, since it uses less digits than its factorization.

988334784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2404 (or 2385 counting only the distinct ones).

The product of its digits is 4644864, while the sum is 54.

The square root of 988334784 is about 31437.7922888997. The cubic root of 988334784 is about 996.0963762162.

The spelling of 988334784 in words is "nine hundred eighty-eight million, three hundred thirty-four thousand, seven hundred eighty-four".