6728500 has 24 divisors (see below), whose sum is σ = 14696136. Its totient is φ = 2691200.

The previous prime is 6728467. The next prime is 6728503. The reversal of 6728500 is 58276.

It can be written as a sum of positive squares in 4 ways, for example, as 195364 + 6533136 = 442^2 + 2556^2 .

It is a super-3 number, since 3×6728500³ (a number of 21 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6728503) 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, 6229 + ... + 7228.

It is an arithmetic number, because the mean of its divisors is an integer number (612339).

Almost surely, 2^6728500 is an apocalyptic number.

It is an amenable number.

6728500 is an abundant number, since it is smaller than the sum of its proper divisors (7967636).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6728500 is a wasteful number, since it uses less digits than its factorization.

6728500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13476 (or 13464 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 6728500 is about 2593.9352343495. The cubic root of 6728500 is about 188.7872899732.

The spelling of 6728500 in words is "six million, seven hundred twenty-eight thousand, five hundred".