4838732721 has 45 divisors (see below), whose sum is σ = 7409376073. Its totient is φ = 3146939640.

The previous prime is 4838732713. The next prime is 4838732747. The reversal of 4838732721 is 1272378384.

The square root of 4838732721 is 69561.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 4838732721 - 2³ = 4838732713 is a prime.

It is a Duffinian number.

Its product of digits (451584) is a multiple of the sum of its prime factors (392).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4838737721) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 36936826 + ... + 36936956.

Almost surely, 2^4838732721 is an apocalyptic number.

4838732721 is the 69561-st square number.

4838732721 is the 34781-st centered octagonal number.

It is an amenable number.

4838732721 is a deficient number, since it is larger than the sum of its proper divisors (2570643352).

4838732721 is an frugal number, since it uses more digits than its factorization.

4838732721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392 (or 193 counting only the distinct ones).

The product of its digits is 451584, while the sum is 45.

The cubic root of 4838732721 is about 1691.3904643883.

The spelling of 4838732721 in words is "four billion, eight hundred thirty-eight million, seven hundred thirty-two thousand, seven hundred twenty-one".