9865087 has 2 divisors, whose sum is σ = 9865088. Its totient is φ = 9865086.

The previous prime is 9865081. The next prime is 9865109. The reversal of 9865087 is 7805689.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (7805689) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9865087 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9865081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4932543 + 4932544.

It is an arithmetic number, because the mean of its divisors is an integer number (4932544).

Almost surely, 2^9865087 is an apocalyptic number.

9865087 is a deficient number, since it is larger than the sum of its proper divisors (1).

9865087 is an equidigital number, since it uses as much as digits as its factorization.

9865087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120960, while the sum is 43.

The square root of 9865087 is about 3140.8736045884. The cubic root of 9865087 is about 214.4702081158.

The spelling of 9865087 in words is "nine million, eight hundred sixty-five thousand, eighty-seven".