8890987 has 4 divisors (see below), whose sum is σ = 10161136. Its totient is φ = 7620840.

The previous prime is 8890969. The next prime is 8890997. The reversal of 8890987 is 7890988.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8890987 - 2¹¹ = 8888939 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8890987.

It is not an unprimeable number, because it can be changed into a prime (8890997) 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 in 3 ways as a sum of consecutive naturals, for example, 635064 + ... + 635077.

It is an arithmetic number, because the mean of its divisors is an integer number (2540284).

Almost surely, 2^8890987 is an apocalyptic number.

8890987 is a deficient number, since it is larger than the sum of its proper divisors (1270149).

8890987 is a wasteful number, since it uses less digits than its factorization.

8890987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1270148.

The product of its (nonzero) digits is 290304, while the sum is 49.

The square root of 8890987 is about 2981.7758131691. The cubic root of 8890987 is about 207.1651307457.

Subtracting from 8890987 its reverse (7890988), we obtain a palindrome (999999).

The spelling of 8890987 in words is "eight million, eight hundred ninety thousand, nine hundred eighty-seven".