8981887 has 2 divisors, whose sum is σ = 8981888. Its totient is φ = 8981886.

The previous prime is 8981879. The next prime is 8981897. The reversal of 8981887 is 7881898.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8981887 - 2³ = 8981879 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8981887.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8981807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4490943 + 4490944.

It is an arithmetic number, because the mean of its divisors is an integer number (4490944).

Almost surely, 2^8981887 is an apocalyptic number.

8981887 is a deficient number, since it is larger than the sum of its proper divisors (1).

8981887 is an equidigital number, since it uses as much as digits as its factorization.

8981887 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 258048, while the sum is 49.

The square root of 8981887 is about 2996.9796462439. The cubic root of 8981887 is about 207.8687457794.

The spelling of 8981887 in words is "eight million, nine hundred eighty-one thousand, eight hundred eighty-seven".