8681568 has 48 divisors (see below), whose sum is σ = 26046720. Its totient is φ = 2480256.

The previous prime is 8681567. The next prime is 8681579. The reversal of 8681568 is 8651868.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8681567) 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, 5788 + ... + 7131.

It is an arithmetic number, because the mean of its divisors is an integer number (542640).

Almost surely, 2^8681568 is an apocalyptic number.

It is an amenable number.

8681568 is an abundant number, since it is smaller than the sum of its proper divisors (17365152).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8681568 is a wasteful number, since it uses less digits than its factorization.

8681568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12939 (or 12931 counting only the distinct ones).

The product of its digits is 92160, while the sum is 42.

The square root of 8681568 is about 2946.4500674541. The cubic root of 8681568 is about 205.5256626389.

The spelling of 8681568 in words is "eight million, six hundred eighty-one thousand, five hundred sixty-eight".