8805981 has 4 divisors (see below), whose sum is σ = 11741312. Its totient is φ = 5870652.

The previous prime is 8805971. The next prime is 8805997. The reversal of 8805981 is 1895088.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 8805981 - 2¹¹ = 8803933 is a prime.

It is a super-2 number, since 2×8805981² = 155090602744722, which contains 22 as substring.

It is a Duffinian number.

8805981 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8805931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1467661 + ... + 1467666.

It is an arithmetic number, because the mean of its divisors is an integer number (2935328).

Almost surely, 2^8805981 is an apocalyptic number.

It is an amenable number.

8805981 is a deficient number, since it is larger than the sum of its proper divisors (2935331).

8805981 is a wasteful number, since it uses less digits than its factorization.

8805981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2935330.

The product of its (nonzero) digits is 23040, while the sum is 39.

The square root of 8805981 is about 2967.4873209502. The cubic root of 8805981 is about 206.5027857363.

The spelling of 8805981 in words is "eight million, eight hundred five thousand, nine hundred eighty-one".