6897891608 has 16 divisors (see below), whose sum is σ = 12934896000. Its totient is φ = 3448586016.

The previous prime is 6897891601. The next prime is 6897891629. The reversal of 6897891608 is 8061987986.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6897891601) 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, 47753 + ... + 126791.

It is an arithmetic number, because the mean of its divisors is an integer number (808431000).

Almost surely, 2^6897891608 is an apocalyptic number.

It is an amenable number.

6897891608 is a deficient number, since it is larger than the sum of its proper divisors (6037004392).

6897891608 is a wasteful number, since it uses less digits than its factorization.

6897891608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89954 (or 89950 counting only the distinct ones).

The product of its (nonzero) digits is 10450944, while the sum is 62.

The square root of 6897891608 is about 83053.5466310741. The cubic root of 6897891608 is about 1903.5843334724.

The spelling of 6897891608 in words is "six billion, eight hundred ninety-seven million, eight hundred ninety-one thousand, six hundred eight".