988116644 has 6 divisors (see below), whose sum is σ = 1729204134. Its totient is φ = 494058320.

The previous prime is 988116643. The next prime is 988116659. The reversal of 988116644 is 446611889.

It can be written as a sum of positive squares in only one way, i.e., 967956544 + 20160100 = 31112^2 + 4490^2 .

It is not an unprimeable number, because it can be changed into a prime (988116643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 123514577 + ... + 123514584.

It is an arithmetic number, because the mean of its divisors is an integer number (288200689).

Almost surely, 2^988116644 is an apocalyptic number.

It is an amenable number.

988116644 is a deficient number, since it is larger than the sum of its proper divisors (741087490).

988116644 is a wasteful number, since it uses less digits than its factorization.

988116644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247029165 (or 247029163 counting only the distinct ones).

The product of its digits is 331776, while the sum is 47.

The square root of 988116644 is about 31434.3227062394. The cubic root of 988116644 is about 996.0230864581.

The spelling of 988116644 in words is "nine hundred eighty-eight million, one hundred sixteen thousand, six hundred forty-four".