4083661 has 4 divisors (see below), whose sum is σ = 4215424. Its totient is φ = 3951900.

The previous prime is 4083659. The next prime is 4083671. The reversal of 4083661 is 1663804.

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 4083661 - 2¹ = 4083659 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4083631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65835 + ... + 65896.

It is an arithmetic number, because the mean of its divisors is an integer number (1053856).

Almost surely, 2^4083661 is an apocalyptic number.

It is an amenable number.

4083661 is a deficient number, since it is larger than the sum of its proper divisors (131763).

4083661 is a wasteful number, since it uses less digits than its factorization.

4083661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131762.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 4083661 is about 2020.8070170108. The cubic root of 4083661 is about 159.8391743361.

The spelling of 4083661 in words is "four million, eighty-three thousand, six hundred sixty-one".