3935431849 has 2 divisors, whose sum is σ = 3935431850. Its totient is φ = 3935431848.

The previous prime is 3935431831. The next prime is 3935431873. The reversal of 3935431849 is 9481345393.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1985326249 + 1950105600 = 44557^2 + 44160^2 .

It is a cyclic number.

It is not a de Polignac number, because 3935431849 - 2¹¹ = 3935429801 is a prime.

It is not a weakly prime, because it can be changed into another prime (3935431879) 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, 1967715924 + 1967715925.

It is an arithmetic number, because the mean of its divisors is an integer number (1967715925).

Almost surely, 2^3935431849 is an apocalyptic number.

It is an amenable number.

3935431849 is a deficient number, since it is larger than the sum of its proper divisors (1).

3935431849 is an equidigital number, since it uses as much as digits as its factorization.

3935431849 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1399680, while the sum is 49.

The square root of 3935431849 is about 62733.0204039308. The cubic root of 3935431849 is about 1578.8133814626.

The spelling of 3935431849 in words is "three billion, nine hundred thirty-five million, four hundred thirty-one thousand, eight hundred forty-nine".