4532728387 has 4 divisors (see below), whose sum is σ = 4944794616. Its totient is φ = 4120662160.

The previous prime is 4532728373. The next prime is 4532728441. The reversal of 4532728387 is 7838272354.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4532728387 - 2¹⁹ = 4532204099 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4532728387.

It is not an unprimeable number, because it can be changed into a prime (4532728087) 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, 206033098 + ... + 206033119.

It is an arithmetic number, because the mean of its divisors is an integer number (1236198654).

Almost surely, 2^4532728387 is an apocalyptic number.

4532728387 is a deficient number, since it is larger than the sum of its proper divisors (412066229).

4532728387 is a wasteful number, since it uses less digits than its factorization.

4532728387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412066228.

The product of its digits is 2257920, while the sum is 49.

The square root of 4532728387 is about 67325.5403765911. The cubic root of 4532728387 is about 1654.9564324989.

The spelling of 4532728387 in words is "four billion, five hundred thirty-two million, seven hundred twenty-eight thousand, three hundred eighty-seven".