4389609 has 8 divisors (see below), whose sum is σ = 6688960. Its totient is φ = 2508336.

The previous prime is 4389607. The next prime is 4389611. The reversal of 4389609 is 9069834.

It is an interprime number because it is at equal distance from previous prime (4389607) and next prime (4389611).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4389609 - 2¹ = 4389607 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 (4389601) 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 7 ways as a sum of consecutive naturals, for example, 104494 + ... + 104535.

It is an arithmetic number, because the mean of its divisors is an integer number (836120).

Almost surely, 2^4389609 is an apocalyptic number.

It is an amenable number.

4389609 is a deficient number, since it is larger than the sum of its proper divisors (2299351).

4389609 is a wasteful number, since it uses less digits than its factorization.

4389609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209039.

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 4389609 is about 2095.1393748388. The cubic root of 4389609 is about 163.7351589992.

The spelling of 4389609 in words is "four million, three hundred eighty-nine thousand, six hundred nine".