8981869 has 8 divisors (see below), whose sum is σ = 9739800. Its totient is φ = 8233536.

The previous prime is 8981867. The next prime is 8981873. The reversal of 8981869 is 9681898.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 202500 + 8779369 = 450^2 + 2963^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8981869 - 2¹ = 8981867 is a prime.

It is a super-2 number, since 2×8981869² = 161347941466322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8981867) 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 7 ways as a sum of consecutive naturals, for example, 382 + ... + 4255.

It is an arithmetic number, because the mean of its divisors is an integer number (1217475).

Almost surely, 2^8981869 is an apocalyptic number.

It is an amenable number.

8981869 is a deficient number, since it is larger than the sum of its proper divisors (757931).

8981869 is a wasteful number, since it uses less digits than its factorization.

8981869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4799.

The product of its digits is 248832, while the sum is 49.

The square root of 8981869 is about 2996.9766432190. The cubic root of 8981869 is about 207.8686069206.

The spelling of 8981869 in words is "eight million, nine hundred eighty-one thousand, eight hundred sixty-nine".