6905728 has 16 divisors (see below), whose sum is σ = 13757760. Its totient is φ = 3452800.

The previous prime is 6905713. The next prime is 6905729. The reversal of 6905728 is 8275096.

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

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6905729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26848 + ... + 27103.

It is an arithmetic number, because the mean of its divisors is an integer number (859860).

Almost surely, 2^6905728 is an apocalyptic number.

It is an amenable number.

6905728 is a deficient number, since it is larger than the sum of its proper divisors (6852032).

6905728 is an equidigital number, since it uses as much as digits as its factorization.

6905728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53965 (or 53953 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 6905728 is about 2627.8751872949. The cubic root of 6905728 is about 190.4304920212.

The spelling of 6905728 in words is "six million, nine hundred five thousand, seven hundred twenty-eight".