4086655 has 4 divisors (see below), whose sum is σ = 4903992. Its totient is φ = 3269320.

The previous prime is 4086631. The next prime is 4086673. The reversal of 4086655 is 5566804.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 4086655 - 2⁷ = 4086527 is a prime.

It is a Duffinian number.

4086655 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 4086655.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 408661 + ... + 408670.

It is an arithmetic number, because the mean of its divisors is an integer number (1225998).

Almost surely, 2^4086655 is an apocalyptic number.

4086655 is a deficient number, since it is larger than the sum of its proper divisors (817337).

4086655 is an equidigital number, since it uses as much as digits as its factorization.

4086655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 817336.

The product of its (nonzero) digits is 28800, while the sum is 34.

The square root of 4086655 is about 2021.5476744316. The cubic root of 4086655 is about 159.8782276579.

The spelling of 4086655 in words is "four million, eighty-six thousand, six hundred fifty-five".