9841609 has 2 divisors, whose sum is σ = 9841610. Its totient is φ = 9841608.

The previous prime is 9841607. The next prime is 9841619. The reversal of 9841609 is 9061489.

9841609 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9703225 + 138384 = 3115^2 + 372^2 .

It is a cyclic number.

It is not a de Polignac number, because 9841609 - 2¹ = 9841607 is a prime.

Together with 9841607, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (9841607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4920804 + 4920805.

It is an arithmetic number, because the mean of its divisors is an integer number (4920805).

Almost surely, 2^9841609 is an apocalyptic number.

It is an amenable number.

9841609 is a deficient number, since it is larger than the sum of its proper divisors (1).

9841609 is an equidigital number, since it uses as much as digits as its factorization.

9841609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 9841609 is about 3137.1338830213. The cubic root of 9841609 is about 214.2999331729.

The spelling of 9841609 in words is "nine million, eight hundred forty-one thousand, six hundred nine".