9842081 has 2 divisors, whose sum is σ = 9842082. Its totient is φ = 9842080.

The previous prime is 9842071. The next prime is 9842083. The reversal of 9842081 is 1802489.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5499025 + 4343056 = 2345^2 + 2084^2 .

It is a cyclic number.

It is not a de Polignac number, because 9842081 - 2⁶ = 9842017 is a prime.

It is a super-2 number, since 2×9842081² = 193733116821122, which contains 22 as substring.

Together with 9842083, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (9842083) 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 as a sum of consecutive naturals, namely, 4921040 + 4921041.

It is an arithmetic number, because the mean of its divisors is an integer number (4921041).

Almost surely, 2^9842081 is an apocalyptic number.

It is an amenable number.

9842081 is a deficient number, since it is larger than the sum of its proper divisors (1).

9842081 is an equidigital number, since it uses as much as digits as its factorization.

9842081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 9842081 is about 3137.2091100212. The cubic root of 9842081 is about 214.3033590338.

The spelling of 9842081 in words is "nine million, eight hundred forty-two thousand, eighty-one".