4443685 has 4 divisors (see below), whose sum is σ = 5332428. Its totient is φ = 3554944.

The previous prime is 4443653. The next prime is 4443689. The reversal of 4443685 is 5863444.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1285956 + 3157729 = 1134^2 + 1777^2 .

It is a cyclic number.

It is not a de Polignac number, because 4443685 - 2⁵ = 4443653 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 4443685.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4443689) 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, 444364 + ... + 444373.

It is an arithmetic number, because the mean of its divisors is an integer number (1333107).

Almost surely, 2^4443685 is an apocalyptic number.

It is an amenable number.

4443685 is a deficient number, since it is larger than the sum of its proper divisors (888743).

4443685 is an equidigital number, since it uses as much as digits as its factorization.

4443685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 888742.

The product of its digits is 46080, while the sum is 34.

The square root of 4443685 is about 2108.0049810188. The cubic root of 4443685 is about 164.4047730000.

It can be divided in two parts, 44436 and 85, that added together give a square (44521 = 211²).

The spelling of 4443685 in words is "four million, four hundred forty-three thousand, six hundred eighty-five".