9840539 has 2 divisors, whose sum is σ = 9840540. Its totient is φ = 9840538.

The previous prime is 9840521. The next prime is 9840577. The reversal of 9840539 is 9350489.

9840539 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (9840577) can be obtained adding 9840539 to its sum of digits (38).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9840539 - 2⁸ = 9840283 is a prime.

It is equal to p₆₅₄₇₈₈ and since 9840539 and 654788 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (9840239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4920269 + 4920270.

It is an arithmetic number, because the mean of its divisors is an integer number (4920270).

Almost surely, 2^9840539 is an apocalyptic number.

9840539 is a deficient number, since it is larger than the sum of its proper divisors (1).

9840539 is an equidigital number, since it uses as much as digits as its factorization.

9840539 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 9840539 is about 3136.9633405572. The cubic root of 9840539 is about 214.2921665147.

The spelling of 9840539 in words is "nine million, eight hundred forty thousand, five hundred thirty-nine".