9989474 has 16 divisors (see below), whose sum is σ = 16695936. Its totient is φ = 4443600.

The previous prime is 9989437. The next prime is 9989477. The reversal of 9989474 is 4749899.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (9989477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3797 + ... + 5864.

It is an arithmetic number, because the mean of its divisors is an integer number (1043496).

Almost surely, 2^9989474 is an apocalyptic number.

9989474 is a gapful number since it is divisible by the number (94) formed by its first and last digit.

9989474 is a deficient number, since it is larger than the sum of its proper divisors (6706462).

9989474 is a wasteful number, since it uses less digits than its factorization.

9989474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9721.

The product of its digits is 653184, while the sum is 50.

The square root of 9989474 is about 3160.6129152429. The cubic root of 9989474 is about 215.3678505332.

The spelling of 9989474 in words is "nine million, nine hundred eighty-nine thousand, four hundred seventy-four".