4165885 has 4 divisors (see below), whose sum is σ = 4999068. Its totient is φ = 3332704.

The previous prime is 4165849. The next prime is 4165927. The reversal of 4165885 is 5885614.

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

It can be written as a sum of positive squares in 2 ways, for example, as 683929 + 3481956 = 827^2 + 1866^2 .

It is a cyclic number.

It is not a de Polignac number, because 4165885 - 2⁷ = 4165757 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 416584 + ... + 416593.

It is an arithmetic number, because the mean of its divisors is an integer number (1249767).

Almost surely, 2^4165885 is an apocalyptic number.

It is an amenable number.

4165885 is a deficient number, since it is larger than the sum of its proper divisors (833183).

4165885 is an equidigital number, since it uses as much as digits as its factorization.

4165885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 833182.

The product of its digits is 38400, while the sum is 37.

The square root of 4165885 is about 2041.0499748904. The cubic root of 4165885 is about 160.9048342600.

It can be divided in two parts, 4165 and 885, that added together give a triangular number (5050 = T₁₀₀).

The spelling of 4165885 in words is "four million, one hundred sixty-five thousand, eight hundred eighty-five".