9938261 has 4 divisors (see below), whose sum is σ = 9962400. Its totient is φ = 9914124.

The previous prime is 9938249. The next prime is 9938263. The reversal of 9938261 is 1628399.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1628399 = 31 ⋅52529.

It is a cyclic number.

It is not a de Polignac number, because 9938261 - 2¹⁰ = 9937237 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9938263) 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, 11441 + ... + 12278.

It is an arithmetic number, because the mean of its divisors is an integer number (2490600).

Almost surely, 2^9938261 is an apocalyptic number.

It is an amenable number.

9938261 is a deficient number, since it is larger than the sum of its proper divisors (24139).

9938261 is a wasteful number, since it uses less digits than its factorization.

9938261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24138.

The product of its digits is 23328, while the sum is 38.

The square root of 9938261 is about 3152.5007533703. The cubic root of 9938261 is about 214.9991779309. Note that the first 3 decimals are identical.

The spelling of 9938261 in words is "nine million, nine hundred thirty-eight thousand, two hundred sixty-one".