4821229 has 4 divisors (see below), whose sum is σ = 5509984. Its totient is φ = 4132476.

The previous prime is 4821209. The next prime is 4821239. The reversal of 4821229 is 9221284.

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 4821229 - 2⁵ = 4821197 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4821197 and 4821206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4821209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 344367 + ... + 344380.

It is an arithmetic number, because the mean of its divisors is an integer number (1377496).

Almost surely, 2^4821229 is an apocalyptic number.

It is an amenable number.

4821229 is a deficient number, since it is larger than the sum of its proper divisors (688755).

4821229 is an equidigital number, since it uses as much as digits as its factorization.

4821229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 688754.

The product of its digits is 2304, while the sum is 28.

The square root of 4821229 is about 2195.7297192505. The cubic root of 4821229 is about 168.9348511184.

It can be divided in two parts, 4821 and 229, that added together give a triangular number (5050 = T₁₀₀).

The spelling of 4821229 in words is "four million, eight hundred twenty-one thousand, two hundred twenty-nine".