8987287 has 2 divisors, whose sum is σ = 8987288. Its totient is φ = 8987286.

The previous prime is 8987269. The next prime is 8987291. The reversal of 8987287 is 7827898.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8987287 is a prime.

It is a Chen prime.

8987287 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 8987287.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8987207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4493643 + 4493644.

It is an arithmetic number, because the mean of its divisors is an integer number (4493644).

Almost surely, 2^8987287 is an apocalyptic number.

8987287 is a deficient number, since it is larger than the sum of its proper divisors (1).

8987287 is an equidigital number, since it uses as much as digits as its factorization.

8987287 is an evil number, because the sum of its binary digits is even.

The product of its digits is 451584, while the sum is 49.

The square root of 8987287 is about 2997.8804178953. The cubic root of 8987287 is about 207.9103950212.

The spelling of 8987287 in words is "eight million, nine hundred eighty-seven thousand, two hundred eighty-seven".