4083861 has 4 divisors (see below), whose sum is σ = 5445152. Its totient is φ = 2722572.

The previous prime is 4083853. The next prime is 4083881. The reversal of 4083861 is 1683804.

It is a happy number.

4083861 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 not a de Polignac number, because 4083861 - 2³ = 4083853 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4083881) 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, 680641 + ... + 680646.

It is an arithmetic number, because the mean of its divisors is an integer number (1361288).

Almost surely, 2^4083861 is an apocalyptic number.

It is an amenable number.

4083861 is a deficient number, since it is larger than the sum of its proper divisors (1361291).

4083861 is a wasteful number, since it uses less digits than its factorization.

4083861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1361290.

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 4083861 is about 2020.8565015854. The cubic root of 4083861 is about 159.8417837033.

The spelling of 4083861 in words is "four million, eighty-three thousand, eight hundred sixty-one".