3868885 has 4 divisors (see below), whose sum is σ = 4642668. Its totient is φ = 3095104.

The previous prime is 3868849. The next prime is 3868897. The reversal of 3868885 is 5888683.

It is a happy number.

3868885 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5888683 = 1663 ⋅3541.

It can be written as a sum of positive squares in 2 ways, for example, as 848241 + 3020644 = 921^2 + 1738^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3868885 is a prime.

It is a super-2 number, since 2×3868885² = 29936542286450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 386884 + ... + 386893.

It is an arithmetic number, because the mean of its divisors is an integer number (1160667).

Almost surely, 2^3868885 is an apocalyptic number.

It is an amenable number.

3868885 is a deficient number, since it is larger than the sum of its proper divisors (773783).

3868885 is an equidigital number, since it uses as much as digits as its factorization.

3868885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 773782.

The product of its digits is 368640, while the sum is 46.

The square root of 3868885 is about 1966.9481436988. The cubic root of 3868885 is about 156.9863674317.

It can be divided in two parts, 3868 and 885, that added together give a triangular number (4753 = T₉₇).

The spelling of 3868885 in words is "three million, eight hundred sixty-eight thousand, eight hundred eighty-five".