6875921 has 8 divisors (see below), whose sum is σ = 7425600. Its totient is φ = 6329232.

The previous prime is 6875867. The next prime is 6875933. The reversal of 6875921 is 1295786.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6875921 - 2¹⁴ = 6859537 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6875941) 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 in 7 ways as a sum of consecutive naturals, for example, 7346 + ... + 8228.

It is an arithmetic number, because the mean of its divisors is an integer number (928200).

Almost surely, 2^6875921 is an apocalyptic number.

It is an amenable number.

6875921 is a deficient number, since it is larger than the sum of its proper divisors (549679).

6875921 is a wasteful number, since it uses less digits than its factorization.

6875921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1495.

The product of its digits is 30240, while the sum is 38.

The square root of 6875921 is about 2622.1977423528. The cubic root of 6875921 is about 190.1561136146.

The spelling of 6875921 in words is "six million, eight hundred seventy-five thousand, nine hundred twenty-one".