6731128 has 8 divisors (see below), whose sum is σ = 12620880. Its totient is φ = 3365560.

The previous prime is 6731117. The next prime is 6731171. The reversal of 6731128 is 8211376.

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 6731096 and 6731105.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 420688 + ... + 420703.

It is an arithmetic number, because the mean of its divisors is an integer number (1577610).

Almost surely, 2^6731128 is an apocalyptic number.

It is an amenable number.

6731128 is a deficient number, since it is larger than the sum of its proper divisors (5889752).

6731128 is a wasteful number, since it uses less digits than its factorization.

6731128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 841397 (or 841393 counting only the distinct ones).

The product of its digits is 2016, while the sum is 28.

The square root of 6731128 is about 2594.4417511287. The cubic root of 6731128 is about 188.8118654565.

It can be divided in two parts, 6731 and 128, that added together give a cube (6859 = 19³).

The spelling of 6731128 in words is "six million, seven hundred thirty-one thousand, one hundred twenty-eight".