9889434 has 48 divisors (see below), whose sum is σ = 22763520. Its totient is φ = 3097440.

The previous prime is 9889423. The next prime is 9889459. The reversal of 9889434 is 4349889.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 9889434.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20407 + ... + 20885.

It is an arithmetic number, because the mean of its divisors is an integer number (474240).

Almost surely, 2^9889434 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9889434, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11381760).

9889434 is an abundant number, since it is smaller than the sum of its proper divisors (12874086).

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

9889434 is a wasteful number, since it uses less digits than its factorization.

9889434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 555 (or 552 counting only the distinct ones).

The product of its digits is 248832, while the sum is 45.

The square root of 9889434 is about 3144.7470486511. The cubic root of 9889434 is about 214.6465004053.

The spelling of 9889434 in words is "nine million, eight hundred eighty-nine thousand, four hundred thirty-four".