6728894 has 8 divisors (see below), whose sum is σ = 10366248. Its totient is φ = 3273480.

The previous prime is 6728881. The next prime is 6728947. The reversal of 6728894 is 4988276.

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

It is an Ulam number.

It is a d-powerful number, because it can be written as 6⁸ + 7² + 2⁴ + 8⁴ + 8⁶ + 9⁷ + 4 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45392 + ... + 45539.

It is an arithmetic number, because the mean of its divisors is an integer number (1295781).

Almost surely, 2^6728894 is an apocalyptic number.

6728894 is a deficient number, since it is larger than the sum of its proper divisors (3637354).

6728894 is a wasteful number, since it uses less digits than its factorization.

6728894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90970.

The product of its digits is 193536, while the sum is 44.

The square root of 6728894 is about 2594.0111796212. The cubic root of 6728894 is about 188.7909748331.

The spelling of 6728894 in words is "six million, seven hundred twenty-eight thousand, eight hundred ninety-four".