6875644 has 12 divisors (see below), whose sum is σ = 12665800. Its totient is φ = 3256848.

The previous prime is 6875623. The next prime is 6875717. The reversal of 6875644 is 4465786.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 6875597 and 6875606.

It is a congruent 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, 45159 + ... + 45310.

Almost surely, 2^6875644 is an apocalyptic number.

It is an amenable number.

6875644 is a deficient number, since it is larger than the sum of its proper divisors (5790156).

6875644 is a wasteful number, since it uses less digits than its factorization.

6875644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90492 (or 90490 counting only the distinct ones).

The product of its digits is 161280, while the sum is 40.

The square root of 6875644 is about 2622.1449235311. The cubic root of 6875644 is about 190.1535600682.

The spelling of 6875644 in words is "six million, eight hundred seventy-five thousand, six hundred forty-four".