8609987 has 2 divisors, whose sum is σ = 8609988. Its totient is φ = 8609986.

The previous prime is 8609963. The next prime is 8609999. The reversal of 8609987 is 7899068.

8609987 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8609987 - 2¹⁶ = 8544451 is a prime.

It is a super-2 number, since 2×8609987² = 148263752280338, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (8609917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4304993 + 4304994.

It is an arithmetic number, because the mean of its divisors is an integer number (4304994).

Almost surely, 2^8609987 is an apocalyptic number.

8609987 is a deficient number, since it is larger than the sum of its proper divisors (1).

8609987 is an equidigital number, since it uses as much as digits as its factorization.

8609987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 217728, while the sum is 47.

The square root of 8609987 is about 2934.2779350293. The cubic root of 8609987 is about 204.9592383759.

The spelling of 8609987 in words is "eight million, six hundred nine thousand, nine hundred eighty-seven".