8642881 has 8 divisors (see below), whose sum is σ = 9376640. Its totient is φ = 7918992.

The previous prime is 8642863. The next prime is 8642897. The reversal of 8642881 is 1882468.

8642881 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 8642881 - 2⁵ = 8642849 is a prime.

It is a super-2 number, since 2×8642881² = 149398783960322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 8642881.

It is not an unprimeable number, because it can be changed into a prime (8642861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 585 + ... + 4198.

It is an arithmetic number, because the mean of its divisors is an integer number (1172080).

Almost surely, 2^8642881 is an apocalyptic number.

It is an amenable number.

8642881 is a deficient number, since it is larger than the sum of its proper divisors (733759).

8642881 is a wasteful number, since it uses less digits than its factorization.

8642881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4935.

The product of its digits is 24576, while the sum is 37.

The square root of 8642881 is about 2939.8777185454. The cubic root of 8642881 is about 205.2199186625.

The spelling of 8642881 in words is "eight million, six hundred forty-two thousand, eight hundred eighty-one".