98497727987 has 2 divisors, whose sum is σ = 98497727988. Its totient is φ = 98497727986.

The previous prime is 98497727971. The next prime is 98497728019. The reversal of 98497727987 is 78972779489.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 98497727987 - 2⁴ = 98497727971 is a prime.

It is not a weakly prime, because it can be changed into another prime (98497727927) 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, 49248863993 + 49248863994.

It is an arithmetic number, because the mean of its divisors is an integer number (49248863994).

Almost surely, 2^98497727987 is an apocalyptic number.

98497727987 is a deficient number, since it is larger than the sum of its proper divisors (1).

98497727987 is an equidigital number, since it uses as much as digits as its factorization.

98497727987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 896168448, while the sum is 77.

The spelling of 98497727987 in words is "ninety-eight billion, four hundred ninety-seven million, seven hundred twenty-seven thousand, nine hundred eighty-seven".