9889808029 has 2 divisors, whose sum is σ = 9889808030. Its totient is φ = 9889808028.

The previous prime is 9889808017. The next prime is 9889808057. The reversal of 9889808029 is 9208089889.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8464368004 + 1425440025 = 92002^2 + 37755^2 .

It is a cyclic number.

It is not a de Polignac number, because 9889808029 - 2¹³ = 9889799837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9889808059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4944904014 + 4944904015.

It is an arithmetic number, because the mean of its divisors is an integer number (4944904015).

Almost surely, 2^9889808029 is an apocalyptic number.

It is an amenable number.

9889808029 is a deficient number, since it is larger than the sum of its proper divisors (1).

9889808029 is an equidigital number, since it uses as much as digits as its factorization.

9889808029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5971968, while the sum is 61.

The square root of 9889808029 is about 99447.5139407718. The cubic root of 9889808029 is about 2146.4920642482.

The spelling of 9889808029 in words is "nine billion, eight hundred eighty-nine million, eight hundred eight thousand, twenty-nine".