9929213 has 6 divisors (see below), whose sum is σ = 11550366. Its totient is φ = 8510712.

The previous prime is 9929203. The next prime is 9929221. The reversal of 9929213 is 3129299.

It can be written as a sum of positive squares in only one way, i.e., 9746884 + 182329 = 3122^2 + 427^2 .

It is not a de Polignac number, because 9929213 - 2⁶ = 9929149 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9929203) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 101270 + ... + 101367.

It is an arithmetic number, because the mean of its divisors is an integer number (1925061).

Almost surely, 2^9929213 is an apocalyptic number.

It is an amenable number.

9929213 is a deficient number, since it is larger than the sum of its proper divisors (1621153).

9929213 is a wasteful number, since it uses less digits than its factorization.

9929213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202651 (or 202644 counting only the distinct ones).

The product of its digits is 8748, while the sum is 35.

The square root of 9929213 is about 3151.0653753929. The cubic root of 9929213 is about 214.9339115423.

The spelling of 9929213 in words is "nine million, nine hundred twenty-nine thousand, two hundred thirteen".