8912987 has 4 divisors (see below), whose sum is σ = 8983296. Its totient is φ = 8842680.

The previous prime is 8912977. The next prime is 8912989. The reversal of 8912987 is 7892198.

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 8912987 - 2⁴ = 8912971 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8912989) 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 in 3 ways as a sum of consecutive naturals, for example, 34964 + ... + 35217.

It is an arithmetic number, because the mean of its divisors is an integer number (2245824).

Almost surely, 2^8912987 is an apocalyptic number.

8912987 is a deficient number, since it is larger than the sum of its proper divisors (70309).

8912987 is a wasteful number, since it uses less digits than its factorization.

8912987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70308.

The product of its digits is 72576, while the sum is 44.

The square root of 8912987 is about 2985.4626107188. The cubic root of 8912987 is about 207.3358609048.

The spelling of 8912987 in words is "eight million, nine hundred twelve thousand, nine hundred eighty-seven".