6728830 has 8 divisors (see below), whose sum is σ = 12111912. Its totient is φ = 2691528.

The previous prime is 6728809. The next prime is 6728833. The reversal of 6728830 is 388276.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6728833) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 336432 + ... + 336451.

It is an arithmetic number, because the mean of its divisors is an integer number (1513989).

Almost surely, 2^6728830 is an apocalyptic number.

6728830 is a deficient number, since it is larger than the sum of its proper divisors (5383082).

6728830 is a wasteful number, since it uses less digits than its factorization.

6728830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 672890.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 6728830 is about 2593.9988434847. The cubic root of 6728830 is about 188.7903762870.

The spelling of 6728830 in words is "six million, seven hundred twenty-eight thousand, eight hundred thirty".