6975887 has 2 divisors, whose sum is σ = 6975888. Its totient is φ = 6975886.

The previous prime is 6975883. The next prime is 6975889. The reversal of 6975887 is 7885796.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6975887 - 2² = 6975883 is a prime.

Together with 6975889, it forms a pair of twin primes.

It is a Chen prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6975883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3487943 + 3487944.

It is an arithmetic number, because the mean of its divisors is an integer number (3487944).

Almost surely, 2^6975887 is an apocalyptic number.

6975887 is a deficient number, since it is larger than the sum of its proper divisors (1).

6975887 is an equidigital number, since it uses as much as digits as its factorization.

6975887 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 846720, while the sum is 50.

The square root of 6975887 is about 2641.1904512927. The cubic root of 6975887 is about 191.0732155372.

Subtracting 6975887 from its reverse (7885796), we obtain a palindrome (909909).

The spelling of 6975887 in words is "six million, nine hundred seventy-five thousand, eight hundred eighty-seven".