4814221 has 2 divisors, whose sum is σ = 4814222. Its totient is φ = 4814220.

The previous prime is 4814219. The next prime is 4814231. The reversal of 4814221 is 1224184.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4791721 + 22500 = 2189^2 + 150^2 .

It is a cyclic number.

It is not a de Polignac number, because 4814221 - 2¹ = 4814219 is a prime.

Together with 4814219, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 4814192 and 4814201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4814231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2407110 + 2407111.

It is an arithmetic number, because the mean of its divisors is an integer number (2407111).

Almost surely, 2^4814221 is an apocalyptic number.

It is an amenable number.

4814221 is a deficient number, since it is larger than the sum of its proper divisors (1).

4814221 is an equidigital number, since it uses as much as digits as its factorization.

4814221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 512, while the sum is 22.

The square root of 4814221 is about 2194.1333140901. The cubic root of 4814221 is about 168.8529584775.

The spelling of 4814221 in words is "four million, eight hundred fourteen thousand, two hundred twenty-one".