9885121 has 4 divisors (see below), whose sum is σ = 9909700. Its totient is φ = 9860544.

The previous prime is 9885119. The next prime is 9885151. The reversal of 9885121 is 1215889.

9885121 is digitally balanced in base 2, 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 an emirpimes, since its reverse is a distinct semiprime: 1215889 = 79 ⋅15391.

It can be written as a sum of positive squares in 2 ways, for example, as 9388096 + 497025 = 3064^2 + 705^2 .

It is a cyclic number.

It is not a de Polignac number, because 9885121 - 2¹ = 9885119 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9885151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11676 + ... + 12493.

It is an arithmetic number, because the mean of its divisors is an integer number (2477425).

Almost surely, 2^9885121 is an apocalyptic number.

It is an amenable number.

9885121 is a deficient number, since it is larger than the sum of its proper divisors (24579).

9885121 is a wasteful number, since it uses less digits than its factorization.

9885121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24578.

The product of its digits is 5760, while the sum is 34.

The square root of 9885121 is about 3144.0612271392. The cubic root of 9885121 is about 214.6152918457.

The spelling of 9885121 in words is "nine million, eight hundred eighty-five thousand, one hundred twenty-one".