6888945 has 16 divisors (see below), whose sum is σ = 12597120. Its totient is φ = 3149184.

The previous prime is 6888941. The next prime is 6888953. The reversal of 6888945 is 5498886.

It is not a de Polignac number, because 6888945 - 2² = 6888941 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 6888894 and 6888903.

It is not an unprimeable number, because it can be changed into a prime (6888941) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 32700 + ... + 32909.

It is an arithmetic number, because the mean of its divisors is an integer number (787320).

Almost surely, 2^6888945 is an apocalyptic number.

It is an amenable number.

6888945 is a deficient number, since it is larger than the sum of its proper divisors (5708175).

6888945 is a wasteful number, since it uses less digits than its factorization.

6888945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65624.

The product of its digits is 552960, while the sum is 48.

The square root of 6888945 is about 2624.6799804929. The cubic root of 6888945 is about 190.2760990532.

The spelling of 6888945 in words is "six million, eight hundred eighty-eight thousand, nine hundred forty-five".