8981868 has 48 divisors (see below), whose sum is σ = 24998400. Its totient is φ = 2454144.

The previous prime is 8981867. The next prime is 8981873. The reversal of 8981868 is 8681898.

8981868 is a strobogrammatic number because it is the same when read upside-down.

It is not an unprimeable number, because it can be changed into a prime (8981867) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 393 + ... + 4256.

It is an arithmetic number, because the mean of its divisors is an integer number (520800).

Almost surely, 2^8981868 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8981868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12499200).

8981868 is an abundant number, since it is smaller than the sum of its proper divisors (16016532).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8981868 is a wasteful number, since it uses less digits than its factorization.

8981868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4686 (or 4684 counting only the distinct ones).

The product of its digits is 221184, while the sum is 48.

The square root of 8981868 is about 2996.9764763842. The cubic root of 8981868 is about 207.8685992063.

The spelling of 8981868 in words is "eight million, nine hundred eighty-one thousand, eight hundred sixty-eight".