6897888 has 72 divisors (see below), whose sum is σ = 20108088. Its totient is φ = 2241792.

The previous prime is 6897887. The next prime is 6897899. The reversal of 6897888 is 8887986.

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6897883) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12106 + ... + 12662.

It is an arithmetic number, because the mean of its divisors is an integer number (279279).

Almost surely, 2^6897888 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6897888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10054044).

6897888 is an abundant number, since it is smaller than the sum of its proper divisors (13210200).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6897888 is a wasteful number, since it uses less digits than its factorization.

6897888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 616 (or 605 counting only the distinct ones).

The product of its digits is 1548288, while the sum is 54.

The square root of 6897888 is about 2626.3830642159. The cubic root of 6897888 is about 190.3584001577.

The spelling of 6897888 in words is "six million, eight hundred ninety-seven thousand, eight hundred eighty-eight".