6728170 has 8 divisors (see below), whose sum is σ = 12110724. Its totient is φ = 2691264.

The previous prime is 6728149. The next prime is 6728171. The reversal of 6728170 is 718276.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 6568969 + 159201 = 2563^2 + 399^2 .

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

It is not an unprimeable number, because it can be changed into a prime (6728171) 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, 336399 + ... + 336418.

Almost surely, 2^6728170 is an apocalyptic number.

6728170 is a deficient number, since it is larger than the sum of its proper divisors (5382554).

6728170 is a wasteful number, since it uses less digits than its factorization.

6728170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 672824.

The product of its (nonzero) digits is 4704, while the sum is 31.

The square root of 6728170 is about 2593.8716236545. The cubic root of 6728170 is about 188.7842035584.

The spelling of 6728170 in words is "six million, seven hundred twenty-eight thousand, one hundred seventy".