9729900539 has 2 divisors, whose sum is σ = 9729900540. Its totient is φ = 9729900538.

The previous prime is 9729900517. The next prime is 9729900601. The reversal of 9729900539 is 9350099279.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9729900539 - 2¹² = 9729896443 is a prime.

It is not a weakly prime, because it can be changed into another prime (9729600539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4864950269 + 4864950270.

It is an arithmetic number, because the mean of its divisors is an integer number (4864950270).

Almost surely, 2^9729900539 is an apocalyptic number.

9729900539 is a deficient number, since it is larger than the sum of its proper divisors (1).

9729900539 is an equidigital number, since it uses as much as digits as its factorization.

9729900539 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1377810, while the sum is 53.

The square root of 9729900539 is about 98640.2582062719. The cubic root of 9729900539 is about 2134.8603286040.

The spelling of 9729900539 in words is "nine billion, seven hundred twenty-nine million, nine hundred thousand, five hundred thirty-nine".