6843728 has 10 divisors (see below), whose sum is σ = 13259754. Its totient is φ = 3421856.

The previous prime is 6843709. The next prime is 6843757. The reversal of 6843728 is 8273486.

It can be written as a sum of positive squares in only one way, i.e., 4048144 + 2795584 = 2012^2 + 1672^2 .

It is a super-2 number, since 2×6843728² = 93673225875968, which contains 22 as substring.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 6843691 and 6843700.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213851 + ... + 213882.

Almost surely, 2^6843728 is an apocalyptic number.

It is an amenable number.

6843728 is a deficient number, since it is larger than the sum of its proper divisors (6416026).

6843728 is a wasteful number, since it uses less digits than its factorization.

6843728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427741 (or 427735 counting only the distinct ones).

The product of its digits is 64512, while the sum is 38.

The square root of 6843728 is about 2616.0519872510. The cubic root of 6843728 is about 189.8588795131.

The spelling of 6843728 in words is "six million, eight hundred forty-three thousand, seven hundred twenty-eight".