6577878 has 16 divisors (see below), whose sum is σ = 13929840. Its totient is φ = 2063616.

The previous prime is 6577873. The next prime is 6577891. The reversal of 6577878 is 8787756.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6577871) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 32143 + ... + 32346.

It is an arithmetic number, because the mean of its divisors is an integer number (870615).

Almost surely, 2^6577878 is an apocalyptic number.

6577878 is an abundant number, since it is smaller than the sum of its proper divisors (7351962).

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

6577878 is a wasteful number, since it uses less digits than its factorization.

6577878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64511.

The product of its digits is 658560, while the sum is 48.

The square root of 6577878 is about 2564.7374134597. The cubic root of 6577878 is about 187.3679354474.

It can be divided in two parts, 65778 and 78, that added together give a palindrome (65856).

The spelling of 6577878 in words is "six million, five hundred seventy-seven thousand, eight hundred seventy-eight".