4321213 has 8 divisors (see below), whose sum is σ = 4927608. Its totient is φ = 3753984.

The previous prime is 4321211. The next prime is 4321231. The reversal of 4321213 is 3121234.

It is a happy number.

4321213 is an esthetic number in base 5, because in such base its adjacent digits differ by 1.

It can be written as a sum of positive squares in 4 ways, for example, as 1127844 + 3193369 = 1062^2 + 1787^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4321213 - 2¹ = 4321211 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4321211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9556 + ... + 9997.

It is an arithmetic number, because the mean of its divisors is an integer number (615951).

Almost surely, 2^4321213 is an apocalyptic number.

It is an amenable number.

4321213 is a deficient number, since it is larger than the sum of its proper divisors (606395).

4321213 is a wasteful number, since it uses less digits than its factorization.

4321213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19583.

The product of its digits is 144, while the sum is 16.

The square root of 4321213 is about 2078.7527510505. The cubic root of 4321213 is about 162.8802990348.

Adding to 4321213 its reverse (3121234), we get a palindrome (7442447).

The spelling of 4321213 in words is "four million, three hundred twenty-one thousand, two hundred thirteen".