4847721 has 8 divisors (see below), whose sum is σ = 6601344. Its totient is φ = 3162960.

The previous prime is 4847719. The next prime is 4847729. The reversal of 4847721 is 1277484.

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

It is not a de Polignac number, because 4847721 - 2¹ = 4847719 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (4847729) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17050 + ... + 17331.

It is an arithmetic number, because the mean of its divisors is an integer number (825168).

Almost surely, 2^4847721 is an apocalyptic number.

It is an amenable number.

4847721 is a deficient number, since it is larger than the sum of its proper divisors (1753623).

4847721 is a wasteful number, since it uses less digits than its factorization.

4847721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34431.

The product of its digits is 12544, while the sum is 33.

The square root of 4847721 is about 2201.7540734605. The cubic root of 4847721 is about 169.2437107978.

The spelling of 4847721 in words is "four million, eight hundred forty-seven thousand, seven hundred twenty-one".