8784981 has 6 divisors (see below), whose sum is σ = 12689430. Its totient is φ = 5856648.

The previous prime is 8784961. The next prime is 8784983. The reversal of 8784981 is 1894878.

It can be written as a sum of positive squares in only one way, i.e., 7650756 + 1134225 = 2766^2 + 1065^2 .

It is not a de Polignac number, because 8784981 - 2⁵ = 8784949 is a prime.

It is a super-2 number, since 2×8784981² = 154351782340722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8784983) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 488046 + ... + 488063.

It is an arithmetic number, because the mean of its divisors is an integer number (2114905).

Almost surely, 2^8784981 is an apocalyptic number.

It is an amenable number.

8784981 is a deficient number, since it is larger than the sum of its proper divisors (3904449).

8784981 is a wasteful number, since it uses less digits than its factorization.

8784981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 976115 (or 976112 counting only the distinct ones).

The product of its digits is 129024, while the sum is 45.

The square root of 8784981 is about 2963.9468618719. The cubic root of 8784981 is about 206.3385030642.

The spelling of 8784981 in words is "eight million, seven hundred eighty-four thousand, nine hundred eighty-one".