532728489 has 4 divisors (see below), whose sum is σ = 710304656. Its totient is φ = 355152324.

The previous prime is 532728487. The next prime is 532728529. The reversal of 532728489 is 984827235.

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 not a de Polignac number, because 532728489 - 2¹ = 532728487 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (532728487) 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, 88788079 + ... + 88788084.

It is an arithmetic number, because the mean of its divisors is an integer number (177576164).

Almost surely, 2^532728489 is an apocalyptic number.

It is an amenable number.

532728489 is a deficient number, since it is larger than the sum of its proper divisors (177576167).

532728489 is a wasteful number, since it uses less digits than its factorization.

532728489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177576166.

The product of its digits is 967680, while the sum is 48.

The square root of 532728489 is about 23080.9117887487. The cubic root of 532728489 is about 810.6535846622.

The spelling of 532728489 in words is "five hundred thirty-two million, seven hundred twenty-eight thousand, four hundred eighty-nine".