3842661 has 4 divisors (see below), whose sum is σ = 5123552. Its totient is φ = 2561772.

The previous prime is 3842627. The next prime is 3842669. The reversal of 3842661 is 1662483.

3842661 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 3842661 - 2⁹ = 3842149 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 (3842669) 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, 640441 + ... + 640446.

It is an arithmetic number, because the mean of its divisors is an integer number (1280888).

Almost surely, 2^3842661 is an apocalyptic number.

It is an amenable number.

3842661 is a deficient number, since it is larger than the sum of its proper divisors (1280891).

3842661 is a wasteful number, since it uses less digits than its factorization.

3842661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1280890.

The product of its digits is 6912, while the sum is 30.

The square root of 3842661 is about 1960.2706445795. The cubic root of 3842661 is about 156.6308690405.

The spelling of 3842661 in words is "three million, eight hundred forty-two thousand, six hundred sixty-one".