4728385 has 4 divisors (see below), whose sum is σ = 5674068. Its totient is φ = 3782704.

The previous prime is 4728379. The next prime is 4728401. The reversal of 4728385 is 5838274.

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

It can be written as a sum of positive squares in 2 ways, for example, as 529984 + 4198401 = 728^2 + 2049^2 .

It is a cyclic number.

It is not a de Polignac number, because 4728385 - 2¹³ = 4720193 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 472834 + ... + 472843.

It is an arithmetic number, because the mean of its divisors is an integer number (1418517).

Almost surely, 2^4728385 is an apocalyptic number.

It is an amenable number.

4728385 is a deficient number, since it is larger than the sum of its proper divisors (945683).

4728385 is an equidigital number, since it uses as much as digits as its factorization.

4728385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 945682.

The product of its digits is 53760, while the sum is 37.

The square root of 4728385 is about 2174.4849964992. The cubic root of 4728385 is about 167.8434033032.

The spelling of 4728385 in words is "four million, seven hundred twenty-eight thousand, three hundred eighty-five".