9936281 has 4 divisors (see below), whose sum is σ = 10123812. Its totient is φ = 9748752.

The previous prime is 9936271. The next prime is 9936293. The reversal of 9936281 is 1826399.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5593225 + 4343056 = 2365^2 + 2084^2 .

It is a cyclic number.

It is not a de Polignac number, because 9936281 - 2¹⁰ = 9935257 is a prime.

It is a super-2 number, since 2×9936281² = 197459360221922, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (9936271) 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, 93686 + ... + 93791.

It is an arithmetic number, because the mean of its divisors is an integer number (2530953).

Almost surely, 2^9936281 is an apocalyptic number.

It is an amenable number.

9936281 is a deficient number, since it is larger than the sum of its proper divisors (187531).

9936281 is a wasteful number, since it uses less digits than its factorization.

9936281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187530.

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

The square root of 9936281 is about 3152.1867013234. The cubic root of 9936281 is about 214.9848988853.

The spelling of 9936281 in words is "nine million, nine hundred thirty-six thousand, two hundred eighty-one".