8509714987 has 2 divisors, whose sum is σ = 8509714988. Its totient is φ = 8509714986.

The previous prime is 8509714949. The next prime is 8509715057. The reversal of 8509714987 is 7894179058.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8509714987 - 2¹⁵ = 8509682219 is a prime.

It is not a weakly prime, because it can be changed into another prime (8509714907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4254857493 + 4254857494.

It is an arithmetic number, because the mean of its divisors is an integer number (4254857494).

Almost surely, 2^8509714987 is an apocalyptic number.

8509714987 is a deficient number, since it is larger than the sum of its proper divisors (1).

8509714987 is an equidigital number, since it uses as much as digits as its factorization.

8509714987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5080320, while the sum is 58.

The square root of 8509714987 is about 92248.1164414754. The cubic root of 8509714987 is about 2041.6047691696.

The spelling of 8509714987 in words is "eight billion, five hundred nine million, seven hundred fourteen thousand, nine hundred eighty-seven".