4728005 has 4 divisors (see below), whose sum is σ = 5673612. Its totient is φ = 3782400.

The previous prime is 4728001. The next prime is 4728011. The reversal of 4728005 is 5008274.

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 2660161 + 2067844 = 1631^2 + 1438^2 .

It is not a de Polignac number, because 4728005 - 2² = 4728001 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4728001) 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, 472796 + ... + 472805.

It is an arithmetic number, because the mean of its divisors is an integer number (1418403).

Almost surely, 2^4728005 is an apocalyptic number.

It is an amenable number.

4728005 is a deficient number, since it is larger than the sum of its proper divisors (945607).

4728005 is an equidigital number, since it uses as much as digits as its factorization.

4728005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 945606.

The product of its (nonzero) digits is 2240, while the sum is 26.

The square root of 4728005 is about 2174.3976177323. The cubic root of 4728005 is about 167.8389068982.

The spelling of 4728005 in words is "four million, seven hundred twenty-eight thousand, five".