989585684 has 24 divisors (see below), whose sum is σ = 1781619840. Its totient is φ = 480733344.

The previous prime is 989585671. The next prime is 989585687. The reversal of 989585684 is 486585989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (989585687) 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 in 7 ways as a sum of consecutive naturals, for example, 824 + ... + 44495.

It is an arithmetic number, because the mean of its divisors is an integer number (74234160).

Almost surely, 2^989585684 is an apocalyptic number.

It is an amenable number.

989585684 is a deficient number, since it is larger than the sum of its proper divisors (792034156).

989585684 is a wasteful number, since it uses less digits than its factorization.

989585684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45479 (or 45477 counting only the distinct ones).

The product of its digits is 24883200, while the sum is 62.

The square root of 989585684 is about 31457.6808426813. The cubic root of 989585684 is about 996.5164402359.

The spelling of 989585684 in words is "nine hundred eighty-nine million, five hundred eighty-five thousand, six hundred eighty-four".