4441661 has 4 divisors (see below), whose sum is σ = 5076192. Its totient is φ = 3807132.

The previous prime is 4441643. The next prime is 4441663. The reversal of 4441661 is 1661444.

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 4441661 - 2⁶ = 4441597 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4441661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4441663) 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, 317255 + ... + 317268.

It is an arithmetic number, because the mean of its divisors is an integer number (1269048).

Almost surely, 2^4441661 is an apocalyptic number.

It is an amenable number.

4441661 is a deficient number, since it is larger than the sum of its proper divisors (634531).

4441661 is an equidigital number, since it uses as much as digits as its factorization.

4441661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 634530.

The product of its digits is 2304, while the sum is 26.

The square root of 4441661 is about 2107.5248515735. The cubic root of 4441661 is about 164.3798082995.

The spelling of 4441661 in words is "four million, four hundred forty-one thousand, six hundred sixty-one".