9937121 has 4 divisors (see below), whose sum is σ = 9946032. Its totient is φ = 9928212.

The previous prime is 9937079. The next prime is 9937141. The reversal of 9937121 is 1217399.

It is a happy number.

9937121 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 9937121 - 2¹⁴ = 9920737 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (9937141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2495 + ... + 5108.

It is an arithmetic number, because the mean of its divisors is an integer number (2486508).

Almost surely, 2^9937121 is an apocalyptic number.

It is an amenable number.

9937121 is a deficient number, since it is larger than the sum of its proper divisors (8911).

9937121 is a wasteful number, since it uses less digits than its factorization.

9937121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8910.

The product of its digits is 3402, while the sum is 32.

The square root of 9937121 is about 3152.3199393463. The cubic root of 9937121 is about 214.9909568938.

The spelling of 9937121 in words is "nine million, nine hundred thirty-seven thousand, one hundred twenty-one".