9934872211 has 32 divisors (see below), whose sum is σ = 11138093568. Its totient is φ = 8786365440.

The previous prime is 9934872203. The next prime is 9934872223. The reversal of 9934872211 is 1122784399.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 9934872211 - 2³ = 9934872203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9934872511) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19750986 + ... + 19751488.

It is an arithmetic number, because the mean of its divisors is an integer number (348065424).

Almost surely, 2^9934872211 is an apocalyptic number.

9934872211 is a deficient number, since it is larger than the sum of its proper divisors (1203221357).

9934872211 is a wasteful number, since it uses less digits than its factorization.

9934872211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 891.

The product of its digits is 217728, while the sum is 46.

The square root of 9934872211 is about 99673.8291177780. The cubic root of 9934872211 is about 2149.7473805227.

The spelling of 9934872211 in words is "nine billion, nine hundred thirty-four million, eight hundred seventy-two thousand, two hundred eleven".