6541878 has 64 divisors (see below), whose sum is σ = 15966720. Its totient is φ = 1747200.

The previous prime is 6541877. The next prime is 6541879. The reversal of 6541878 is 8781456.

6541878 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (6541877) and next prime (6541879).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6541877) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 49873 + ... + 50003.

It is an arithmetic number, because the mean of its divisors is an integer number (249480).

Almost surely, 2^6541878 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6541878, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7983360).

6541878 is an abundant number, since it is smaller than the sum of its proper divisors (9424842).

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

6541878 is a wasteful number, since it uses less digits than its factorization.

6541878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213.

The product of its digits is 53760, while the sum is 39.

The square root of 6541878 is about 2557.7095222093. The cubic root of 6541878 is about 187.0254952990.

The spelling of 6541878 in words is "six million, five hundred forty-one thousand, eight hundred seventy-eight".