8959987 has 8 divisors (see below), whose sum is σ = 9186912. Its totient is φ = 8736000.

The previous prime is 8959981. The next prime is 8959991. The reversal of 8959987 is 7899598.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8959987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8959981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6237 + ... + 7537.

It is an arithmetic number, because the mean of its divisors is an integer number (1148364).

Almost surely, 2^8959987 is an apocalyptic number.

8959987 is a deficient number, since it is larger than the sum of its proper divisors (226925).

8959987 is a wasteful number, since it uses less digits than its factorization.

8959987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1469.

The product of its digits is 1632960, while the sum is 55.

The square root of 8959987 is about 2993.3237379208. The cubic root of 8959987 is about 207.6996636240.

The spelling of 8959987 in words is "eight million, nine hundred fifty-nine thousand, nine hundred eighty-seven".