9938161 has 4 divisors (see below), whose sum is σ = 10034752. Its totient is φ = 9841572.

The previous prime is 9938153. The next prime is 9938179. The reversal of 9938161 is 1618399.

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.

It is a cyclic number.

It is not a de Polignac number, because 9938161 - 2³ = 9938153 is a prime.

It is a Duffinian number.

9938161 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 9938161.

It is not an unprimeable number, because it can be changed into a prime (9938141) 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, 48141 + ... + 48346.

It is an arithmetic number, because the mean of its divisors is an integer number (2508688).

Almost surely, 2^9938161 is an apocalyptic number.

It is an amenable number.

9938161 is a deficient number, since it is larger than the sum of its proper divisors (96591).

9938161 is a wasteful number, since it uses less digits than its factorization.

9938161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96590.

The product of its digits is 11664, while the sum is 37.

The square root of 9938161 is about 3152.4848929059. The cubic root of 9938161 is about 214.9984568124.

The spelling of 9938161 in words is "nine million, nine hundred thirty-eight thousand, one hundred sixty-one".