4747383521 has 2 divisors, whose sum is σ = 4747383522. Its totient is φ = 4747383520.

The previous prime is 4747383503. The next prime is 4747383527. The reversal of 4747383521 is 1253837474.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2404823521 + 2342560000 = 49039^2 + 48400^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4747383521 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (4747383527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2373691760 + 2373691761.

It is an arithmetic number, because the mean of its divisors is an integer number (2373691761).

Almost surely, 2^4747383521 is an apocalyptic number.

It is an amenable number.

4747383521 is a deficient number, since it is larger than the sum of its proper divisors (1).

4747383521 is an equidigital number, since it uses as much as digits as its factorization.

4747383521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 564480, while the sum is 44.

The square root of 4747383521 is about 68901.2592120057. The cubic root of 4747383521 is about 1680.6789962521.

The spelling of 4747383521 in words is "four billion, seven hundred forty-seven million, three hundred eighty-three thousand, five hundred twenty-one".