4847221 has 4 divisors (see below), whose sum is σ = 4938732. Its totient is φ = 4755712.

The previous prime is 4847189. The next prime is 4847231. The reversal of 4847221 is 1227484.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2160900 + 2686321 = 1470^2 + 1639^2 .

It is a cyclic number.

It is not a de Polignac number, because 4847221 - 2⁵ = 4847189 is a prime.

It is a Duffinian number.

4847221 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 4847221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4847231) 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, 45676 + ... + 45781.

It is an arithmetic number, because the mean of its divisors is an integer number (1234683).

Almost surely, 2^4847221 is an apocalyptic number.

It is an amenable number.

4847221 is a deficient number, since it is larger than the sum of its proper divisors (91511).

4847221 is an equidigital number, since it uses as much as digits as its factorization.

4847221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91510.

The product of its digits is 3584, while the sum is 28.

The square root of 4847221 is about 2201.6405246997. The cubic root of 4847221 is about 169.2378919284.

The spelling of 4847221 in words is "four million, eight hundred forty-seven thousand, two hundred twenty-one".