4373213 has 12 divisors (see below), whose sum is σ = 4798260. Its totient is φ = 3983616.

The previous prime is 4373207. The next prime is 4373219. The reversal of 4373213 is 3123734.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (4373207) and next prime (4373219).

It can be written as a sum of positive squares in 6 ways, for example, as 850084 + 3523129 = 922^2 + 1877^2 .

It is not a de Polignac number, because 4373213 - 2⁸ = 4372957 is a prime.

It is a d-powerful number, because it can be written as 4¹¹ + 3⁴ + 7⁶ + 3⁴ + 2¹¹ + 1 + 3¹⁰ .

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4373219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18983 + ... + 19211.

It is an arithmetic number, because the mean of its divisors is an integer number (399855).

Almost surely, 2^4373213 is an apocalyptic number.

It is an amenable number.

4373213 is a deficient number, since it is larger than the sum of its proper divisors (425047).

4373213 is a wasteful number, since it uses less digits than its factorization.

4373213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368 (or 355 counting only the distinct ones).

The product of its digits is 1512, while the sum is 23.

The square root of 4373213 is about 2091.2228480007. Note that the first 3 decimals coincide. The cubic root of 4373213 is about 163.5310443036.

Adding to 4373213 its reverse (3123734), we get a palindrome (7496947).

It can be divided in two parts, 43732 and 13, that multiplied together give a square (568516 = 754²).

The spelling of 4373213 in words is "four million, three hundred seventy-three thousand, two hundred thirteen".