4728739 has 6 divisors (see below), whose sum is σ = 4991100. Its totient is φ = 4479516.

The previous prime is 4728733. The next prime is 4728743. The reversal of 4728739 is 9378274.

It is not a de Polignac number, because 4728739 - 2⁷ = 4728611 is a prime.

It is a super-3 number, since 3×4728739³ (a number of 21 digits) contains 333 as substring.

It is a Duffinian number.

4728739 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4728733) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6189 + ... + 6910.

It is an arithmetic number, because the mean of its divisors is an integer number (831850).

Almost surely, 2^4728739 is an apocalyptic number.

4728739 is a deficient number, since it is larger than the sum of its proper divisors (262361).

4728739 is a wasteful number, since it uses less digits than its factorization.

4728739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13137 (or 13118 counting only the distinct ones).

The product of its digits is 84672, while the sum is 40.

The square root of 4728739 is about 2174.5663935599. The cubic root of 4728739 is about 167.8475918427.

The spelling of 4728739 in words is "four million, seven hundred twenty-eight thousand, seven hundred thirty-nine".