8554981 has 2 divisors, whose sum is σ = 8554982. Its totient is φ = 8554980.

The previous prime is 8554969. The next prime is 8554993. The reversal of 8554981 is 1894558.

8554981 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (8554969) and next prime (8554993).

It can be written as a sum of positive squares in only one way, i.e., 6708100 + 1846881 = 2590^2 + 1359^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8554981 is a prime.

It is a super-2 number, since 2×8554981² = 146375399820722, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8554901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4277490 + 4277491.

It is an arithmetic number, because the mean of its divisors is an integer number (4277491).

Almost surely, 2^8554981 is an apocalyptic number.

It is an amenable number.

8554981 is a deficient number, since it is larger than the sum of its proper divisors (1).

8554981 is an equidigital number, since it uses as much as digits as its factorization.

8554981 is an evil number, because the sum of its binary digits is even.

The product of its digits is 57600, while the sum is 40.

The square root of 8554981 is about 2924.8899124582. The cubic root of 8554981 is about 204.5218361716.

The spelling of 8554981 in words is "eight million, five hundred fifty-four thousand, nine hundred eighty-one".