4373321 has 2 divisors, whose sum is σ = 4373322. Its totient is φ = 4373320.

The previous prime is 4373311. The next prime is 4373323. The reversal of 4373321 is 1233734.

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., 4000000 + 373321 = 2000^2 + 611^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4373321 is a prime.

Together with 4373323, it forms a pair of twin primes.

It is a Chen prime.

It is a d-powerful number, because it can be written as 4¹¹ + 3³ + 7⁶ + 3⁵ + 3¹⁰ + 2¹¹ + 1 .

It is equal to p₃₀₇₆₁₆ and since 4373321 and 307616 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (4373323) 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 as a sum of consecutive naturals, namely, 2186660 + 2186661.

It is an arithmetic number, because the mean of its divisors is an integer number (2186661).

Almost surely, 2^4373321 is an apocalyptic number.

It is an amenable number.

4373321 is a deficient number, since it is larger than the sum of its proper divisors (1).

4373321 is an equidigital number, since it uses as much as digits as its factorization.

4373321 is an odious number, because the sum of its binary digits is odd.

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

The square root of 4373321 is about 2091.2486700534. The cubic root of 4373321 is about 163.5323904692.

It can be divided in two parts, 4 and 373321, that multiplied together give a square (1493284 = 1222²).

The spelling of 4373321 in words is "four million, three hundred seventy-three thousand, three hundred twenty-one".