3864085 has 8 divisors (see below), whose sum is σ = 4671576. Its totient is φ = 3068160.

The previous prime is 3864059. The next prime is 3864089. The reversal of 3864085 is 5804683.

It can be written as a sum of positive squares in 4 ways, for example, as 1623076 + 2241009 = 1274^2 + 1497^2 .

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

It is not a de Polignac number, because 3864085 - 2¹⁹ = 3339797 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3864085.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3864089) by changing a digit.

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, 2136 + ... + 3505.

It is an arithmetic number, because the mean of its divisors is an integer number (583947).

Almost surely, 2^3864085 is an apocalyptic number.

It is an amenable number.

3864085 is a deficient number, since it is larger than the sum of its proper divisors (807491).

3864085 is a wasteful number, since it uses less digits than its factorization.

3864085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5783.

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 3864085 is about 1965.7276006609. The cubic root of 3864085 is about 156.9214179344.

The spelling of 3864085 in words is "three million, eight hundred sixty-four thousand, eighty-five".