9889985674 has 8 divisors (see below), whose sum is σ = 14890127940. Its totient is φ = 4926609696.

The previous prime is 9889985663. The next prime is 9889985687. The reversal of 9889985674 is 4765899889.

9889985674 is digitally balanced in base 2 and base 5, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 9475659649 + 414326025 = 97343^2 + 20355^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 9889985597 and 9889985606.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 9190899 + ... + 9191974.

Almost surely, 2^9889985674 is an apocalyptic number.

9889985674 is a deficient number, since it is larger than the sum of its proper divisors (5000142266).

9889985674 is a wasteful number, since it uses less digits than its factorization.

9889985674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18383144.

The product of its digits is 313528320, while the sum is 73.

The square root of 9889985674 is about 99448.4070963432. The cubic root of 9889985674 is about 2146.5049162435.

The spelling of 9889985674 in words is "nine billion, eight hundred eighty-nine million, nine hundred eighty-five thousand, six hundred seventy-four".