4389085 has 4 divisors (see below), whose sum is σ = 5266908. Its totient is φ = 3511264.

The previous prime is 4389083. The next prime is 4389131. The reversal of 4389085 is 5809834.

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 444889 + 3944196 = 667^2 + 1986^2 .

It is a cyclic number.

It is not a de Polignac number, because 4389085 - 2¹ = 4389083 is a prime.

It is a Duffinian number.

4389085 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4389083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 438904 + ... + 438913.

It is an arithmetic number, because the mean of its divisors is an integer number (1316727).

Almost surely, 2^4389085 is an apocalyptic number.

It is an amenable number.

4389085 is a deficient number, since it is larger than the sum of its proper divisors (877823).

4389085 is an equidigital number, since it uses as much as digits as its factorization.

4389085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 877822.

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 4389085 is about 2095.0143197601. The cubic root of 4389085 is about 163.7286435641.

The spelling of 4389085 in words is "four million, three hundred eighty-nine thousand, eighty-five".