4428609 has 4 divisors (see below), whose sum is σ = 5904816. Its totient is φ = 2952404.

The previous prime is 4428607. The next prime is 4428643. The reversal of 4428609 is 9068244.

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 4428609 - 2¹ = 4428607 is a prime.

It is a super-2 number, since 2×4428609² = 39225155349762, which contains 22 as substring.

It is a D-number.

It is a self number, because there is not a number n which added to its sum of digits gives 4428609.

It is not an unprimeable number, because it can be changed into a prime (4428601) 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, 738099 + ... + 738104.

It is an arithmetic number, because the mean of its divisors is an integer number (1476204).

Almost surely, 2^4428609 is an apocalyptic number.

It is an amenable number.

4428609 is a deficient number, since it is larger than the sum of its proper divisors (1476207).

4428609 is a wasteful number, since it uses less digits than its factorization.

4428609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1476206.

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 4428609 is about 2104.4260500193. The cubic root of 4428609 is about 164.2186380956.

The spelling of 4428609 in words is "four million, four hundred twenty-eight thousand, six hundred nine".