8561868 has 36 divisors (see below), whose sum is σ = 23240952. Its totient is φ = 2446080.

The previous prime is 8561867. The next prime is 8561869. The reversal of 8561868 is 8681658.

It is an interprime number because it is at equal distance from previous prime (8561867) and next prime (8561869).

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

It is not an unprimeable number, because it can be changed into a prime (8561867) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6693 + ... + 7868.

It is an arithmetic number, because the mean of its divisors is an integer number (645582).

Almost surely, 2^8561868 is an apocalyptic number.

It is an amenable number.

8561868 is an abundant number, since it is smaller than the sum of its proper divisors (14679084).

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

8561868 is a wasteful number, since it uses less digits than its factorization.

8561868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14582 (or 14573 counting only the distinct ones).

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

The square root of 8561868 is about 2926.0669848792. The cubic root of 8561868 is about 204.5767033919.

It can be divided in two parts, 8 and 561868, that multiplied together give a palindrome (4494944).

The spelling of 8561868 in words is "eight million, five hundred sixty-one thousand, eight hundred sixty-eight".