6728903 has 4 divisors (see below), whose sum is σ = 7021488. Its totient is φ = 6436320.

The previous prime is 6728881. The next prime is 6728947. The reversal of 6728903 is 3098276.

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

It is not a de Polignac number, because 6728903 - 2¹⁰ = 6727879 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 (6728963) 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, 146258 + ... + 146303.

It is an arithmetic number, because the mean of its divisors is an integer number (1755372).

Almost surely, 2^6728903 is an apocalyptic number.

6728903 is a deficient number, since it is larger than the sum of its proper divisors (292585).

6728903 is a wasteful number, since it uses less digits than its factorization.

6728903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292584.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 6728903 is about 2594.0129143857. The cubic root of 6728903 is about 188.7910590034.

The spelling of 6728903 in words is "six million, seven hundred twenty-eight thousand, nine hundred three".