4509289 has 4 divisors (see below), whose sum is σ = 4746640. Its totient is φ = 4271940.

The previous prime is 4509287. The next prime is 4509317. The reversal of 4509289 is 9829054.

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, and also an emirpimes, since its reverse is a distinct semiprime: 9829054 = 2 ⋅4914527.

It is a cyclic number.

It is not a de Polignac number, because 4509289 - 2¹ = 4509287 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4509287) 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, 118647 + ... + 118684.

It is an arithmetic number, because the mean of its divisors is an integer number (1186660).

Almost surely, 2^4509289 is an apocalyptic number.

It is an amenable number.

4509289 is a deficient number, since it is larger than the sum of its proper divisors (237351).

4509289 is a wasteful number, since it uses less digits than its factorization.

4509289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237350.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 4509289 is about 2123.5086531493. The cubic root of 4509289 is about 165.2098828968.

The spelling of 4509289 in words is "four million, five hundred nine thousand, two hundred eighty-nine".