3988029121 has 2 divisors, whose sum is σ = 3988029122. Its totient is φ = 3988029120.

The previous prime is 3988029083. The next prime is 3988029151. The reversal of 3988029121 is 1219208893.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3387240000 + 600789121 = 58200^2 + 24511^2 .

It is a cyclic number.

It is not a de Polignac number, because 3988029121 - 2²⁹ = 3451158209 is a prime.

It is not a weakly prime, because it can be changed into another prime (3988029151) 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, 1994014560 + 1994014561.

It is an arithmetic number, because the mean of its divisors is an integer number (1994014561).

Almost surely, 2^3988029121 is an apocalyptic number.

It is an amenable number.

3988029121 is a deficient number, since it is larger than the sum of its proper divisors (1).

3988029121 is an equidigital number, since it uses as much as digits as its factorization.

3988029121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 62208, while the sum is 43.

The square root of 3988029121 is about 63150.8441827977. The cubic root of 3988029121 is about 1585.8159208041.

The spelling of 3988029121 in words is "three billion, nine hundred eighty-eight million, twenty-nine thousand, one hundred twenty-one".