4752221 has 2 divisors, whose sum is σ = 4752222. Its totient is φ = 4752220.

The previous prime is 4752199. The next prime is 4752229. The reversal of 4752221 is 1222574.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2544025 + 2208196 = 1595^2 + 1486^2 .

It is a cyclic number.

It is not a de Polignac number, because 4752221 - 2⁶ = 4752157 is a prime.

It is a d-powerful number, because it can be written as 4¹¹ + 7³ + 5 + 2⁹ + 2¹⁵ + 2¹⁹ + 1 .

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4752229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2376110 + 2376111.

It is an arithmetic number, because the mean of its divisors is an integer number (2376111).

Almost surely, 2^4752221 is an apocalyptic number.

It is an amenable number.

4752221 is a deficient number, since it is larger than the sum of its proper divisors (1).

4752221 is an equidigital number, since it uses as much as digits as its factorization.

4752221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1120, while the sum is 23.

The square root of 4752221 is about 2179.9589445675. The cubic root of 4752221 is about 168.1249660729.

Adding to 4752221 its reverse (1222574), we get a palindrome (5974795).

The spelling of 4752221 in words is "four million, seven hundred fifty-two thousand, two hundred twenty-one".