4086666 has 16 divisors (see below), whose sum is σ = 9081600. Its totient is φ = 1362204.

The previous prime is 4086631. The next prime is 4086673. The reversal of 4086666 is 6666804.

4086666 is a modest number, since divided by 6666 gives 408 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 4086666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37786 + ... + 37893.

It is an arithmetic number, because the mean of its divisors is an integer number (567600).

Almost surely, 2^4086666 is an apocalyptic number.

4086666 is an abundant number, since it is smaller than the sum of its proper divisors (4994934).

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

4086666 is a wasteful number, since it uses less digits than its factorization.

4086666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75690 (or 75684 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 4086666 is about 2021.5503951176. The cubic root of 4086666 is about 159.8783711052.

The spelling of 4086666 in words is "four million, eighty-six thousand, six hundred sixty-six".