5985666 has 48 divisors (see below), whose sum is σ = 14197248. Its totient is φ = 1814400.

The previous prime is 5985659. The next prime is 5985671. The reversal of 5985666 is 6665895.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9171 + ... + 9801.

It is an arithmetic number, because the mean of its divisors is an integer number (295776).

Almost surely, 2^5985666 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5985666, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7098624).

5985666 is an abundant number, since it is smaller than the sum of its proper divisors (8211582).

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

5985666 is a wasteful number, since it uses less digits than its factorization.

5985666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 687 (or 684 counting only the distinct ones).

The product of its digits is 388800, while the sum is 45.

The square root of 5985666 is about 2446.5620776919. The cubic root of 5985666 is about 181.5672405280.

The spelling of 5985666 in words is "five million, nine hundred eighty-five thousand, six hundred sixty-six".