8655681 has 8 divisors (see below), whose sum is σ = 11703744. Its totient is φ = 5689040.

The previous prime is 8655679. The next prime is 8655701. The reversal of 8655681 is 1865568.

8655681 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 8655681 - 2¹ = 8655679 is a prime.

It is a super-2 number, since 2×8655681² = 149841627147522, which contains 22 as substring.

8655681 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (8655611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20106 + ... + 20531.

It is an arithmetic number, because the mean of its divisors is an integer number (1462968).

Almost surely, 2^8655681 is an apocalyptic number.

It is an amenable number.

8655681 is a deficient number, since it is larger than the sum of its proper divisors (3048063).

8655681 is a wasteful number, since it uses less digits than its factorization.

8655681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40711.

The product of its digits is 57600, while the sum is 39.

The square root of 8655681 is about 2942.0538744217. The cubic root of 8655681 is about 205.3211780791.

The spelling of 8655681 in words is "eight million, six hundred fifty-five thousand, six hundred eighty-one".