9681841 has 12 divisors (see below), whose sum is σ = 10672560. Its totient is φ = 8776560.

The previous prime is 9681829. The next prime is 9681883. The reversal of 9681841 is 1481869.

It is a happy number.

It is not a de Polignac number, because 9681841 - 2⁵ = 9681809 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9681841.

It is not an unprimeable number, because it can be changed into a prime (9681341) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9486 + ... + 10456.

It is an arithmetic number, because the mean of its divisors is an integer number (889380).

Almost surely, 2^9681841 is an apocalyptic number.

It is an amenable number.

9681841 is a deficient number, since it is larger than the sum of its proper divisors (990719).

9681841 is a wasteful number, since it uses less digits than its factorization.

9681841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1056 (or 1043 counting only the distinct ones).

The product of its digits is 13824, while the sum is 37.

The square root of 9681841 is about 3111.5656830605. The cubic root of 9681841 is about 213.1339573352.

It can be divided in two parts, 968 and 1841, that added together give a square (2809 = 53²).

The spelling of 9681841 in words is "nine million, six hundred eighty-one thousand, eight hundred forty-one".