3666887 has 8 divisors (see below), whose sum is σ = 4202496. Its totient is φ = 3134232.

The previous prime is 3666881. The next prime is 3666907. The reversal of 3666887 is 7886663.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3666887 - 2⁶ = 3666823 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3666881) 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, 3818 + ... + 4680.

It is an arithmetic number, because the mean of its divisors is an integer number (525312).

Almost surely, 2^3666887 is an apocalyptic number.

3666887 is a deficient number, since it is larger than the sum of its proper divisors (535609).

3666887 is an equidigital number, since it uses as much as digits as its factorization.

3666887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1477.

The product of its digits is 290304, while the sum is 44.

The square root of 3666887 is about 1914.9117473137. The cubic root of 3666887 is about 154.2052556270.

The spelling of 3666887 in words is "three million, six hundred sixty-six thousand, eight hundred eighty-seven".