6897975 has 36 divisors (see below), whose sum is σ = 13273704. Its totient is φ = 3151680.

The previous prime is 6897949. The next prime is 6897991. The reversal of 6897975 is 5797986.

6897975 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 6897975 - 2⁸ = 6897719 is a prime.

It is a d-powerful number, because it can be written as 6⁵ + 8⁷ + 9⁴ + 7² + 9⁷ + 7³ + 5⁵ .

It is a congruent number.

It is an unprimeable number.

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 35 ways as a sum of consecutive naturals, for example, 2737 + ... + 4613.

It is an arithmetic number, because the mean of its divisors is an integer number (368714).

Almost surely, 2^6897975 is an apocalyptic number.

6897975 is a deficient number, since it is larger than the sum of its proper divisors (6375729).

6897975 is a wasteful number, since it uses less digits than its factorization.

6897975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1904 (or 1892 counting only the distinct ones).

The product of its digits is 952560, while the sum is 51.

The square root of 6897975 is about 2626.3996268656. The cubic root of 6897975 is about 190.3592004563.

The spelling of 6897975 in words is "six million, eight hundred ninety-seven thousand, nine hundred seventy-five".