8866889987 has 2 divisors, whose sum is σ = 8866889988. Its totient is φ = 8866889986.

The previous prime is 8866889963. The next prime is 8866890001. The reversal of 8866889987 is 7899886688.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8866889987 - 2²² = 8862695683 is a prime.

It is not a weakly prime, because it can be changed into another prime (8866880987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4433444993 + 4433444994.

It is an arithmetic number, because the mean of its divisors is an integer number (4433444994).

Almost surely, 2^8866889987 is an apocalyptic number.

8866889987 is a deficient number, since it is larger than the sum of its proper divisors (1).

8866889987 is an equidigital number, since it uses as much as digits as its factorization.

8866889987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 668860416, while the sum is 77.

The square root of 8866889987 is about 94164.1650894861. The cubic root of 8866889987 is about 2069.7780330189.

The spelling of 8866889987 in words is "eight billion, eight hundred sixty-six million, eight hundred eighty-nine thousand, nine hundred eighty-seven".