3666000 has 160 divisors (see below), whose sum is σ = 12999168. Its totient is φ = 883200.

The previous prime is 3665989. The next prime is 3666001. The reversal of 3666000 is 6663.

3666000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3666001) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 77977 + ... + 78023.

Almost surely, 2^3666000 is an apocalyptic number.

3666000 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3666000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6499584).

3666000 is an abundant number, since it is smaller than the sum of its proper divisors (9333168).

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

3666000 is a wasteful number, since it uses less digits than its factorization.

3666000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86 (or 70 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 3666000 is about 1914.6801299434. The cubic root of 3666000 is about 154.1928208204.

The spelling of 3666000 in words is "three million, six hundred sixty-six thousand".