3941942539 has 2 divisors, whose sum is σ = 3941942540. Its totient is φ = 3941942538.

The previous prime is 3941942533. The next prime is 3941942573. The reversal of 3941942539 is 9352491493.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3941942539 - 2¹⁵ = 3941909771 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3941942492 and 3941942501.

It is not a weakly prime, because it can be changed into another prime (3941942533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1970971269 + 1970971270.

It is an arithmetic number, because the mean of its divisors is an integer number (1970971270).

Almost surely, 2^3941942539 is an apocalyptic number.

3941942539 is a deficient number, since it is larger than the sum of its proper divisors (1).

3941942539 is an equidigital number, since it uses as much as digits as its factorization.

3941942539 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1049760, while the sum is 49.

The square root of 3941942539 is about 62784.8910089044. The cubic root of 3941942539 is about 1579.6835528994.

The spelling of 3941942539 in words is "three billion, nine hundred forty-one million, nine hundred forty-two thousand, five hundred thirty-nine".