4721317841 has 4 divisors (see below), whose sum is σ = 4721530932. Its totient is φ = 4721104752.

The previous prime is 4721317831. The next prime is 4721317859. The reversal of 4721317841 is 1487131274.

4721317841 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1487131274 = 2 ⋅743565637.

It can be written as a sum of positive squares in 2 ways, for example, as 4010562241 + 710755600 = 63329^2 + 26660^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4721317841 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4721317795 and 4721317804.

It is not an unprimeable number, because it can be changed into a prime (4721317831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68870 + ... + 119103.

It is an arithmetic number, because the mean of its divisors is an integer number (1180382733).

Almost surely, 2^4721317841 is an apocalyptic number.

It is an amenable number.

4721317841 is a deficient number, since it is larger than the sum of its proper divisors (213091).

4721317841 is a wasteful number, since it uses less digits than its factorization.

4721317841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213090.

The product of its digits is 37632, while the sum is 38.

The square root of 4721317841 is about 68711.8464385873. The cubic root of 4721317841 is about 1677.5974066630.

The spelling of 4721317841 in words is "four billion, seven hundred twenty-one million, three hundred seventeen thousand, eight hundred forty-one".