4539789 has 12 divisors (see below), whose sum is σ = 6735196. Its totient is φ = 2944512.

The previous prime is 4539779. The next prime is 4539791. The reversal of 4539789 is 9879354.

It can be written as a sum of positive squares in 2 ways, for example, as 3674889 + 864900 = 1917^2 + 930^2 .

It is not a de Polignac number, because 4539789 - 2⁹ = 4539277 is a prime.

It is an Ulam number.

It is a Duffinian number.

4539789 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4539739) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6484 + ... + 7149.

Almost surely, 2^4539789 is an apocalyptic number.

It is an amenable number.

4539789 is a deficient number, since it is larger than the sum of its proper divisors (2195407).

4539789 is a wasteful number, since it uses less digits than its factorization.

4539789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13676 (or 13673 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 4539789 is about 2130.6780610876. The cubic root of 4539789 is about 165.5815293059.

The spelling of 4539789 in words is "four million, five hundred thirty-nine thousand, seven hundred eighty-nine".