9640841 has 16 divisors (see below), whose sum is σ = 11591424. Its totient is φ = 7839744.

The previous prime is 9640837. The next prime is 9640849. The reversal of 9640841 is 1480469.

It is a cyclic number.

It is not a de Polignac number, because 9640841 - 2² = 9640837 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9640798 and 9640807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9640849) 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 15 ways as a sum of consecutive naturals, for example, 37385 + ... + 37641.

It is an arithmetic number, because the mean of its divisors is an integer number (724464).

Almost surely, 2^9640841 is an apocalyptic number.

It is an amenable number.

9640841 is a deficient number, since it is larger than the sum of its proper divisors (1950583).

9640841 is a wasteful number, since it uses less digits than its factorization.

9640841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 520.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 9640841 is about 3104.9703702290. The cubic root of 9640841 is about 212.8326766039.

The spelling of 9640841 in words is "nine million, six hundred forty thousand, eight hundred forty-one".