6887838 has 16 divisors (see below), whose sum is σ = 13942656. Its totient is φ = 2268120.

The previous prime is 6887831. The next prime is 6887843. The reversal of 6887838 is 8387886.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6887831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6418 + ... + 7413.

It is an arithmetic number, because the mean of its divisors is an integer number (871416).

Almost surely, 2^6887838 is an apocalyptic number.

6887838 is an abundant number, since it is smaller than the sum of its proper divisors (7054818).

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

6887838 is a wasteful number, since it uses less digits than its factorization.

6887838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13919.

The product of its digits is 516096, while the sum is 48.

The square root of 6887838 is about 2624.4690891683. The cubic root of 6887838 is about 190.2659065431.

Adding to 6887838 its sum of digits (48), we get a palindrome (6887886).

The spelling of 6887838 in words is "six million, eight hundred eighty-seven thousand, eight hundred thirty-eight".