989782234884 has 135 divisors (see below), whose sum is σ = 2731776392037. Its totient is φ = 312455364192.

The previous prime is 989782234877. The next prime is 989782234891. The reversal of 989782234884 is 488432287989.

The square root of 989782234884 is 994878.

It is a perfect power (a square), and thus also a powerful number.

It is an interprime number because it is at equal distance from previous prime (989782234877) and next prime (989782234891).

It can be written as a sum of positive squares in only one way, i.e., 858361484484 + 131420750400 = 926478^2 + 362520^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 340246822 + ... + 340249730.

Almost surely, 2^989782234884 is an apocalyptic number.

989782234884 is the 994878-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 989782234884

989782234884 is an abundant number, since it is smaller than the sum of its proper divisors (1741994157153).

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

989782234884 is an equidigital number, since it uses as much as digits as its factorization.

989782234884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5872 (or 2933 counting only the distinct ones).

The product of its digits is 445906944, while the sum is 72.

The spelling of 989782234884 in words is "nine hundred eighty-nine billion, seven hundred eighty-two million, two hundred thirty-four thousand, eight hundred eighty-four".