8911881 has 12 divisors (see below), whose sum is σ = 14043120. Its totient is φ = 5401080.

The previous prime is 8911853. The next prime is 8911901. The reversal of 8911881 is 1881198.

8911881 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8911881 - 2⁹ = 8911369 is a prime.

It is a super-2 number, since 2×8911881² = 158843245916322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8911841) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44911 + ... + 45108.

It is an arithmetic number, because the mean of its divisors is an integer number (1170260).

Almost surely, 2^8911881 is an apocalyptic number.

It is an amenable number.

8911881 is a deficient number, since it is larger than the sum of its proper divisors (5131239).

8911881 is a wasteful number, since it uses less digits than its factorization.

8911881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90036 (or 90033 counting only the distinct ones).

The product of its digits is 4608, while the sum is 36.

The square root of 8911881 is about 2985.2773740475. The cubic root of 8911881 is about 207.3272845451.

It can be divided in two parts, 891 and 1881, that added together give a palindrome (2772).

The spelling of 8911881 in words is "eight million, nine hundred eleven thousand, eight hundred eighty-one".