3939803429 has 2 divisors, whose sum is σ = 3939803430. Its totient is φ = 3939803428.

The previous prime is 3939803359. The next prime is 3939803437. The reversal of 3939803429 is 9243089393.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1977136225 + 1962667204 = 44465^2 + 44302^2 .

It is a cyclic number.

It is not a de Polignac number, because 3939803429 - 2¹² = 3939799333 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3939803459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1969901714 + 1969901715.

It is an arithmetic number, because the mean of its divisors is an integer number (1969901715).

Almost surely, 2^3939803429 is an apocalyptic number.

It is an amenable number.

3939803429 is a deficient number, since it is larger than the sum of its proper divisors (1).

3939803429 is an equidigital number, since it uses as much as digits as its factorization.

3939803429 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1259712, while the sum is 50.

The square root of 3939803429 is about 62767.8534681568. The cubic root of 3939803429 is about 1579.3977607833.

The spelling of 3939803429 in words is "three billion, nine hundred thirty-nine million, eight hundred three thousand, four hundred twenty-nine".