4747401721 has 4 divisors (see below), whose sum is σ = 4900543744. Its totient is φ = 4594259700.

The previous prime is 4747401671. The next prime is 4747401739. The reversal of 4747401721 is 1271047474.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4747401721 - 2¹³ = 4747393529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4747401751) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76570965 + ... + 76571026.

It is an arithmetic number, because the mean of its divisors is an integer number (1225135936).

Almost surely, 2^4747401721 is an apocalyptic number.

It is an amenable number.

4747401721 is a deficient number, since it is larger than the sum of its proper divisors (153142023).

4747401721 is a wasteful number, since it uses less digits than its factorization.

4747401721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153142022.

The product of its (nonzero) digits is 43904, while the sum is 37.

The square root of 4747401721 is about 68901.3912849371. The cubic root of 4747401721 is about 1680.6811439839.

The spelling of 4747401721 in words is "four billion, seven hundred forty-seven million, four hundred one thousand, seven hundred twenty-one".