8887139 has 2 divisors, whose sum is σ = 8887140. Its totient is φ = 8887138.

The previous prime is 8887133. The next prime is 8887159. The reversal of 8887139 is 9317888.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8887139 - 2⁸ = 8886883 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8887139.

It is not a weakly prime, because it can be changed into another prime (8887133) 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, 4443569 + 4443570.

It is an arithmetic number, because the mean of its divisors is an integer number (4443570).

Almost surely, 2^8887139 is an apocalyptic number.

8887139 is a deficient number, since it is larger than the sum of its proper divisors (1).

8887139 is an equidigital number, since it uses as much as digits as its factorization.

8887139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 96768, while the sum is 44.

The square root of 8887139 is about 2981.1304902671. The cubic root of 8887139 is about 207.1352395591.

The spelling of 8887139 in words is "eight million, eight hundred eighty-seven thousand, one hundred thirty-nine".