6851728 has 20 divisors (see below), whose sum is σ = 14296828. Its totient is φ = 3162240.

The previous prime is 6851717. The next prime is 6851737. The reversal of 6851728 is 8271586.

It can be written as a sum of positive squares in 2 ways, for example, as 3640464 + 3211264 = 1908^2 + 1792^2 .

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, 16263 + ... + 16678.

Almost surely, 2^6851728 is an apocalyptic number.

It is an amenable number.

6851728 is an abundant number, since it is smaller than the sum of its proper divisors (7445100).

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

6851728 is a wasteful number, since it uses less digits than its factorization.

6851728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32962 (or 32956 counting only the distinct ones).

The product of its digits is 26880, while the sum is 37.

The square root of 6851728 is about 2617.5805622750. The cubic root of 6851728 is about 189.9328294416.

The spelling of 6851728 in words is "six million, eight hundred fifty-one thousand, seven hundred twenty-eight".