9921002 has 48 divisors (see below), whose sum is σ = 19458432. Its totient is φ = 3693600.

The previous prime is 9921001. The next prime is 9921007. The reversal of 9921002 is 2001299.

It is not an unprimeable number, because it can be changed into a prime (9921001) by changing a digit.

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, 65627 + ... + 65777.

It is an arithmetic number, because the mean of its divisors is an integer number (405384).

Almost surely, 2^9921002 is an apocalyptic number.

9921002 is a deficient number, since it is larger than the sum of its proper divisors (9537430).

9921002 is a wasteful number, since it uses less digits than its factorization.

9921002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211 (or 192 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 23.

The square root of 9921002 is about 3149.7622132472. The cubic root of 9921002 is about 214.8746484014.

The spelling of 9921002 in words is "nine million, nine hundred twenty-one thousand, two".