9928841 has 4 divisors (see below), whose sum is σ = 10692612. Its totient is φ = 9165072.

The previous prime is 9928813. The next prime is 9928843. The reversal of 9928841 is 1488299.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1488299 = 17 ⋅87547.

It can be written as a sum of positive squares in 2 ways, for example, as 687241 + 9241600 = 829^2 + 3040^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9928841 is a prime.

It is a super-3 number, since 3×9928841³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9928843) 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, 381866 + ... + 381891.

It is an arithmetic number, because the mean of its divisors is an integer number (2673153).

Almost surely, 2^9928841 is an apocalyptic number.

It is an amenable number.

9928841 is a deficient number, since it is larger than the sum of its proper divisors (763771).

9928841 is a wasteful number, since it uses less digits than its factorization.

9928841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 763770.

The product of its digits is 41472, while the sum is 41.

The square root of 9928841 is about 3151.0063471850. The cubic root of 9928841 is about 214.9312273278.

The spelling of 9928841 in words is "nine million, nine hundred twenty-eight thousand, eight hundred forty-one".