9851887 has 2 divisors, whose sum is σ = 9851888. Its totient is φ = 9851886.

The previous prime is 9851873. The next prime is 9851911. The reversal of 9851887 is 7881589.

9851887 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (7881589) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9851887 - 2⁷ = 9851759 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9851837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4925943 + 4925944.

It is an arithmetic number, because the mean of its divisors is an integer number (4925944).

Almost surely, 2^9851887 is an apocalyptic number.

9851887 is a deficient number, since it is larger than the sum of its proper divisors (1).

9851887 is an equidigital number, since it uses as much as digits as its factorization.

9851887 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 161280, while the sum is 46.

The square root of 9851887 is about 3138.7715749955. The cubic root of 9851887 is about 214.3745079845.

The spelling of 9851887 in words is "nine million, eight hundred fifty-one thousand, eight hundred eighty-seven".