9938249 has 2 divisors, whose sum is σ = 9938250. Its totient is φ = 9938248.

The previous prime is 9938239. The next prime is 9938263. The reversal of 9938249 is 9428399.

9938249 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9412624 + 525625 = 3068^2 + 725^2 .

It is an emirp because it is prime and its reverse (9428399) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9938249 - 2⁴ = 9938233 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (9938239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4969124 + 4969125.

It is an arithmetic number, because the mean of its divisors is an integer number (4969125).

Almost surely, 2^9938249 is an apocalyptic number.

It is an amenable number.

9938249 is a deficient number, since it is larger than the sum of its proper divisors (1).

9938249 is an equidigital number, since it uses as much as digits as its factorization.

9938249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 139968, while the sum is 44.

The square root of 9938249 is about 3152.4988501187. The cubic root of 9938249 is about 214.9990913969. Note that the first 3 decimals are identical.

The spelling of 9938249 in words is "nine million, nine hundred thirty-eight thousand, two hundred forty-nine".