6787878 has 24 divisors (see below), whose sum is σ = 13935624. Its totient is φ = 2204160.

The previous prime is 6787873. The next prime is 6787889. The reversal of 6787878 is 8787876.

6787878 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

It is an alternating number because its digits alternate between even and odd.

It is a self number, because there is not a number n which added to its sum of digits gives 6787878.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6787871) 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, 9750 + ... + 10422.

It is an arithmetic number, because the mean of its divisors is an integer number (580651).

Almost surely, 2^6787878 is an apocalyptic number.

6787878 is an abundant number, since it is smaller than the sum of its proper divisors (7147746).

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

6787878 is a wasteful number, since it uses less digits than its factorization.

6787878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 760 (or 719 counting only the distinct ones).

The product of its digits is 1053696, while the sum is 51.

The square root of 6787878 is about 2605.3556379120. The cubic root of 6787878 is about 189.3410041471.

The spelling of 6787878 in words is "six million, seven hundred eighty-seven thousand, eight hundred seventy-eight".