9930211 has 4 divisors (see below), whose sum is σ = 9972000. Its totient is φ = 9888424.

The previous prime is 9930197. The next prime is 9930233. The reversal of 9930211 is 1120399.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 9930211 - 2⁷ = 9930083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9930311) 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 3 ways as a sum of consecutive naturals, for example, 20536 + ... + 21013.

It is an arithmetic number, because the mean of its divisors is an integer number (2493000).

Almost surely, 2^9930211 is an apocalyptic number.

9930211 is a deficient number, since it is larger than the sum of its proper divisors (41789).

9930211 is a wasteful number, since it uses less digits than its factorization.

9930211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41788.

The product of its (nonzero) digits is 486, while the sum is 25.

The square root of 9930211 is about 3151.2237305529. The cubic root of 9930211 is about 214.9411124104.

The spelling of 9930211 in words is "nine million, nine hundred thirty thousand, two hundred eleven".