6547878 has 36 divisors (see below), whose sum is σ = 14761500. Its totient is φ = 2178252.

The previous prime is 6547867. The next prime is 6547897. The reversal of 6547878 is 8787456.

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

It is a Curzon number.

It is a zygodrome in base 3.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 12873 + ... + 13371.

Almost surely, 2^6547878 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6547878, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7380750).

6547878 is an abundant number, since it is smaller than the sum of its proper divisors (8213622).

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

6547878 is an frugal number, since it uses more digits than its factorization.

6547878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525 (or 504 counting only the distinct ones).

The product of its digits is 376320, while the sum is 45.

The square root of 6547878 is about 2558.8821778269. The cubic root of 6547878 is about 187.0826557494.

It can be divided in two parts, 65478 and 78, that added together give a palindrome (65556).

The spelling of 6547878 in words is "six million, five hundred forty-seven thousand, eight hundred seventy-eight".