4728749 has 2 divisors, whose sum is σ = 4728750. Its totient is φ = 4728748.

The previous prime is 4728743. The next prime is 4728761. The reversal of 4728749 is 9478274.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4380649 + 348100 = 2093^2 + 590^2 .

It is a cyclic number.

It is not a de Polignac number, because 4728749 - 2⁴ = 4728733 is a prime.

It is a super-2 number, since 2×4728749² = 44722134210002, which contains 22 as substring.

It is a Chen prime.

It is a d-powerful number, because it can be written as 4 + 7³ + 2²¹ + 8⁷ + 7⁴ + 4⁴ + 9⁶ .

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4728743) 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, 2364374 + 2364375.

It is an arithmetic number, because the mean of its divisors is an integer number (2364375).

Almost surely, 2^4728749 is an apocalyptic number.

It is an amenable number.

4728749 is a deficient number, since it is larger than the sum of its proper divisors (1).

4728749 is an equidigital number, since it uses as much as digits as its factorization.

4728749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 112896, while the sum is 41.

The square root of 4728749 is about 2174.5686928676. The cubic root of 4728749 is about 167.8477101600.

The spelling of 4728749 in words is "four million, seven hundred twenty-eight thousand, seven hundred forty-nine".