9935240039 has 2 divisors, whose sum is σ = 9935240040. Its totient is φ = 9935240038.

The previous prime is 9935239969. The next prime is 9935240071. The reversal of 9935240039 is 9300425399.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 9935240039 - 2¹² = 9935235943 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9935242039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4967620019 + 4967620020.

It is an arithmetic number, because the mean of its divisors is an integer number (4967620020).

Almost surely, 2^9935240039 is an apocalyptic number.

9935240039 is a deficient number, since it is larger than the sum of its proper divisors (1).

9935240039 is an equidigital number, since it uses as much as digits as its factorization.

9935240039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 262440, while the sum is 44.

The square root of 9935240039 is about 99675.6742590688. The cubic root of 9935240039 is about 2149.7739108932.

The spelling of 9935240039 in words is "nine billion, nine hundred thirty-five million, two hundred forty thousand, thirty-nine".