8636987 has 2 divisors, whose sum is σ = 8636988. Its totient is φ = 8636986.

The previous prime is 8636959. The next prime is 8636989. The reversal of 8636987 is 7896368.

8636987 is digitally balanced in base 2 and base 3, because in such bases 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 8636987 - 2⁶ = 8636923 is a prime.

Together with 8636989, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (8636989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4318493 + 4318494.

It is an arithmetic number, because the mean of its divisors is an integer number (4318494).

Almost surely, 2^8636987 is an apocalyptic number.

8636987 is a deficient number, since it is larger than the sum of its proper divisors (1).

8636987 is an equidigital number, since it uses as much as digits as its factorization.

8636987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 435456, while the sum is 47.

The square root of 8636987 is about 2938.8751249415. The cubic root of 8636987 is about 205.1732582468.

It can be divided in two parts, 86 and 36987, that added together give a palindrome (37073).

The spelling of 8636987 in words is "eight million, six hundred thirty-six thousand, nine hundred eighty-seven".