6975391 has 4 divisors (see below), whose sum is σ = 6990984. Its totient is φ = 6959800.

The previous prime is 6975379. The next prime is 6975401. The reversal of 6975391 is 1935796.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6975391 - 2⁵ = 6975359 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6975361) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7105 + ... + 8026.

It is an arithmetic number, because the mean of its divisors is an integer number (1747746).

Almost surely, 2^6975391 is an apocalyptic number.

6975391 is a deficient number, since it is larger than the sum of its proper divisors (15593).

6975391 is a wasteful number, since it uses less digits than its factorization.

6975391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15592.

The product of its digits is 51030, while the sum is 40.

The square root of 6975391 is about 2641.0965525705. The cubic root of 6975391 is about 191.0686868628.

The spelling of 6975391 in words is "six million, nine hundred seventy-five thousand, three hundred ninety-one".