8661366 has 48 divisors (see below), whose sum is σ = 21868704. Its totient is φ = 2426112.

The previous prime is 8661353. The next prime is 8661383. The reversal of 8661366 is 6631668.

It is a self number, because there is not a number n which added to its sum of digits gives 8661366.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6030 + ... + 7326.

It is an arithmetic number, because the mean of its divisors is an integer number (455598).

Almost surely, 2^8661366 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8661366, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10934352).

8661366 is an abundant number, since it is smaller than the sum of its proper divisors (13207338).

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

8661366 is a wasteful number, since it uses less digits than its factorization.

8661366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1365 (or 1362 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 8661366 is about 2943.0198776087. The cubic root of 8661366 is about 205.3661194859.

The spelling of 8661366 in words is "eight million, six hundred sixty-one thousand, three hundred sixty-six".