6875645 has 16 divisors (see below), whose sum is σ = 9735168. Its totient is φ = 4561920.

The previous prime is 6875623. The next prime is 6875717. The reversal of 6875645 is 5465786.

It is not a de Polignac number, because 6875645 - 2⁸ = 6875389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2084 + ... + 4253.

It is an arithmetic number, because the mean of its divisors is an integer number (608448).

Almost surely, 2^6875645 is an apocalyptic number.

It is an amenable number.

6875645 is a deficient number, since it is larger than the sum of its proper divisors (2859523).

6875645 is a wasteful number, since it uses less digits than its factorization.

6875645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6380.

The product of its digits is 201600, while the sum is 41.

The square root of 6875645 is about 2622.1451142147. The cubic root of 6875645 is about 190.1535692869.

The spelling of 6875645 in words is "six million, eight hundred seventy-five thousand, six hundred forty-five".