8987818 has 16 divisors (see below), whose sum is σ = 15825024. Its totient is φ = 3747600.

The previous prime is 8987809. The next prime is 8987851. The reversal of 8987818 is 8187898.

It is a super-2 number, since 2×8987818² = 161561744802248, which contains 22 as substring.

It is an Ulam number.

It is an alternating number because its digits alternate between even and odd.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8158 + ... + 9193.

It is an arithmetic number, because the mean of its divisors is an integer number (989064).

Almost surely, 2^8987818 is an apocalyptic number.

8987818 is a deficient number, since it is larger than the sum of its proper divisors (6837206).

8987818 is a wasteful number, since it uses less digits than its factorization.

8987818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17397.

The product of its digits is 258048, while the sum is 49.

The square root of 8987818 is about 2997.9689791591. The cubic root of 8987818 is about 207.9144896290.

The spelling of 8987818 in words is "eight million, nine hundred eighty-seven thousand, eight hundred eighteen".