6720303 has 4 divisors (see below), whose sum is σ = 8960408. Its totient is φ = 4480200.

The previous prime is 6720299. The next prime is 6720323. The reversal of 6720303 is 3030276.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 6720303 - 2² = 6720299 is a prime.

It is a D-number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6720303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6720323) 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 3 ways as a sum of consecutive naturals, for example, 1120048 + ... + 1120053.

It is an arithmetic number, because the mean of its divisors is an integer number (2240102).

Almost surely, 2^6720303 is an apocalyptic number.

6720303 is a deficient number, since it is larger than the sum of its proper divisors (2240105).

6720303 is a wasteful number, since it uses less digits than its factorization.

6720303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2240104.

The product of its (nonzero) digits is 756, while the sum is 21.

The square root of 6720303 is about 2592.3547210982. The cubic root of 6720303 is about 188.7105954027.

Adding to 6720303 its reverse (3030276), we get a palindrome (9750579).

The spelling of 6720303 in words is "six million, seven hundred twenty thousand, three hundred three".