4707135721 has 8 divisors (see below), whose sum is σ = 4736179080. Its totient is φ = 4678113792.

The previous prime is 4707135709. The next prime is 4707135731. The reversal of 4707135721 is 1275317074.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1138387600 + 3568748121 = 33740^2 + 59739^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4707135721 - 2¹⁹ = 4706611433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4707135731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 777735 + ... + 783763.

It is an arithmetic number, because the mean of its divisors is an integer number (592022385).

Almost surely, 2^4707135721 is an apocalyptic number.

It is an amenable number.

4707135721 is a deficient number, since it is larger than the sum of its proper divisors (29043359).

4707135721 is a wasteful number, since it uses less digits than its factorization.

4707135721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10715.

The product of its (nonzero) digits is 41160, while the sum is 37.

The square root of 4707135721 is about 68608.5688598735. The cubic root of 4707135721 is about 1675.9159728789.

The spelling of 4707135721 in words is "four billion, seven hundred seven million, one hundred thirty-five thousand, seven hundred twenty-one".