3785881 has 4 divisors (see below), whose sum is σ = 4130064. Its totient is φ = 3441700.

The previous prime is 3785861. The next prime is 3785891. The reversal of 3785881 is 1885873.

3785881 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 a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3785881 - 2⁷ = 3785753 is a prime.

It is a super-2 number, since 2×3785881² = 28665789892322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3785801) by changing a digit.

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, 172075 + ... + 172096.

It is an arithmetic number, because the mean of its divisors is an integer number (1032516).

Almost surely, 2^3785881 is an apocalyptic number.

It is an amenable number.

3785881 is a deficient number, since it is larger than the sum of its proper divisors (344183).

3785881 is a wasteful number, since it uses less digits than its factorization.

3785881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344182.

The product of its digits is 53760, while the sum is 40.

The square root of 3785881 is about 1945.7340517142. The cubic root of 3785881 is about 155.8555670628.

The spelling of 3785881 in words is "three million, seven hundred eighty-five thousand, eight hundred eighty-one".