4821213 has 16 divisors (see below), whose sum is σ = 6782976. Its totient is φ = 3041520.

The previous prime is 4821209. The next prime is 4821239. The reversal of 4821213 is 3121284.

It is not a de Polignac number, because 4821213 - 2² = 4821209 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4821213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4821263) 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 15 ways as a sum of consecutive naturals, for example, 3820 + ... + 4922.

It is an arithmetic number, because the mean of its divisors is an integer number (423936).

Almost surely, 2^4821213 is an apocalyptic number.

It is an amenable number.

4821213 is a deficient number, since it is larger than the sum of its proper divisors (1961763).

4821213 is a wasteful number, since it uses less digits than its factorization.

4821213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1184.

The product of its digits is 384, while the sum is 21.

The square root of 4821213 is about 2195.7260758118. The cubic root of 4821213 is about 168.9346642393.

Adding to 4821213 its reverse (3121284), we get a palindrome (7942497).

The spelling of 4821213 in words is "four million, eight hundred twenty-one thousand, two hundred thirteen".