6875664 has 20 divisors (see below), whose sum is σ = 17762256. Its totient is φ = 2291872.

The previous prime is 6875623. The next prime is 6875717. The reversal of 6875664 is 4665786.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71574 + ... + 71669.

Almost surely, 2^6875664 is an apocalyptic number.

It is an amenable number.

6875664 is an abundant number, since it is smaller than the sum of its proper divisors (10886592).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6875664 is a wasteful number, since it uses less digits than its factorization.

6875664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143254 (or 143248 counting only the distinct ones).

The product of its digits is 241920, while the sum is 42.

The square root of 6875664 is about 2622.1487372001. The cubic root of 6875664 is about 190.1537444421.

The spelling of 6875664 in words is "six million, eight hundred seventy-five thousand, six hundred sixty-four".