4728557 has 2 divisors, whose sum is σ = 4728558. Its totient is φ = 4728556.

The previous prime is 4728553. The next prime is 4728599. The reversal of 4728557 is 7558274.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2709316 + 2019241 = 1646^2 + 1421^2 .

It is a cyclic number.

It is not a de Polignac number, because 4728557 - 2² = 4728553 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4728557.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4728551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2364278 + 2364279.

It is an arithmetic number, because the mean of its divisors is an integer number (2364279).

Almost surely, 2^4728557 is an apocalyptic number.

It is an amenable number.

4728557 is a deficient number, since it is larger than the sum of its proper divisors (1).

4728557 is an equidigital number, since it uses as much as digits as its factorization.

4728557 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 78400, while the sum is 38.

The square root of 4728557 is about 2174.5245457341. The cubic root of 4728557 is about 167.8454384389.

The spelling of 4728557 in words is "four million, seven hundred twenty-eight thousand, five hundred fifty-seven".