8883981 has 12 divisors (see below), whose sum is σ = 12858300. Its totient is φ = 5910720.

The previous prime is 8883977. The next prime is 8883991. The reversal of 8883981 is 1893888.

8883981 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 6937956 + 1946025 = 2634^2 + 1395^2 .

It is not a de Polignac number, because 8883981 - 2² = 8883977 is a prime.

It is a super-2 number, since 2×8883981² = 157850236816722, which contains 22 as substring.

It is an Ulam number.

8883981 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8883971) 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, 7945 + ... + 8993.

It is an arithmetic number, because the mean of its divisors is an integer number (1071525).

Almost surely, 2^8883981 is an apocalyptic number.

It is an amenable number.

8883981 is a deficient number, since it is larger than the sum of its proper divisors (3974319).

8883981 is a wasteful number, since it uses less digits than its factorization.

8883981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1996 (or 1993 counting only the distinct ones).

The product of its digits is 110592, while the sum is 45.

The square root of 8883981 is about 2980.6007783667. The cubic root of 8883981 is about 207.1107018317.

The spelling of 8883981 in words is "eight million, eight hundred eighty-three thousand, nine hundred eighty-one".