9921136 has 40 divisors (see below), whose sum is σ = 19998720. Its totient is φ = 4764864.

The previous prime is 9921133. The next prime is 9921137. The reversal of 9921136 is 6311299.

It is a junction number, because it is equal to n+sod(n) for n = 9921098 and 9921107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9921133) 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, 59325 + ... + 59491.

It is an arithmetic number, because the mean of its divisors is an integer number (499968).

Almost surely, 2^9921136 is an apocalyptic number.

It is an amenable number.

9921136 is an abundant number, since it is smaller than the sum of its proper divisors (10077584).

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

9921136 is a wasteful number, since it uses less digits than its factorization.

9921136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301 (or 295 counting only the distinct ones).

The product of its digits is 2916, while the sum is 31.

The square root of 9921136 is about 3149.7834846224. The cubic root of 9921136 is about 214.8756158129.

The spelling of 9921136 in words is "nine million, nine hundred twenty-one thousand, one hundred thirty-six".