6931328 has 16 divisors (see below), whose sum is σ = 13808760. Its totient is φ = 3465600.

The previous prime is 6931313. The next prime is 6931339. The reversal of 6931328 is 8231396.

It is a tau number, because it is divible by the number of its divisors (16).

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 6931294 and 6931303.

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, 26948 + ... + 27203.

Almost surely, 2^6931328 is an apocalyptic number.

It is an amenable number.

6931328 is a deficient number, since it is larger than the sum of its proper divisors (6877432).

6931328 is an equidigital number, since it uses as much as digits as its factorization.

6931328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54165 (or 54153 counting only the distinct ones).

The product of its digits is 7776, while the sum is 32.

The square root of 6931328 is about 2632.7415368775. The cubic root of 6931328 is about 190.6655147425.

The spelling of 6931328 in words is "six million, nine hundred thirty-one thousand, three hundred twenty-eight".