8989881 has 16 divisors (see below), whose sum is σ = 12359424. Its totient is φ = 5809104.

The previous prime is 8989873. The next prime is 8989919. The reversal of 8989881 is 1889898.

It is not a de Polignac number, because 8989881 - 2³ = 8989873 is a prime.

It is a super-2 number, since 2×8989881² = 161635920788322, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8989861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29130 + ... + 29436.

It is an arithmetic number, because the mean of its divisors is an integer number (772464).

Almost surely, 2^8989881 is an apocalyptic number.

It is an amenable number.

8989881 is a deficient number, since it is larger than the sum of its proper divisors (3369543).

8989881 is a wasteful number, since it uses less digits than its factorization.

8989881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 580.

The product of its digits is 331776, while the sum is 51.

The square root of 8989881 is about 2998.3130256863. The cubic root of 8989881 is about 207.9303961511.

It can be divided in two parts, 8989 and 881, that added together give a triangular number (9870 = T₁₄₀).

The spelling of 8989881 in words is "eight million, nine hundred eighty-nine thousand, eight hundred eighty-one".