9987027497 has 2 divisors, whose sum is σ = 9987027498. Its totient is φ = 9987027496.

The previous prime is 9987027469. The next prime is 9987027521. The reversal of 9987027497 is 7947207899.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9925937641 + 61089856 = 99629^2 + 7816^2 .

It is a cyclic number.

It is not a de Polignac number, because 9987027497 - 2⁶ = 9987027433 is a prime.

It is not a weakly prime, because it can be changed into another prime (9987027467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4993513748 + 4993513749.

It is an arithmetic number, because the mean of its divisors is an integer number (4993513749).

Almost surely, 2^9987027497 is an apocalyptic number.

It is an amenable number.

9987027497 is a deficient number, since it is larger than the sum of its proper divisors (1).

9987027497 is an equidigital number, since it uses as much as digits as its factorization.

9987027497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16003008, while the sum is 62.

The square root of 9987027497 is about 99935.1164356154. The cubic root of 9987027497 is about 2153.5026732133.

The spelling of 9987027497 in words is "nine billion, nine hundred eighty-seven million, twenty-seven thousand, four hundred ninety-seven".