6549678 has 12 divisors (see below), whose sum is σ = 14191008. Its totient is φ = 2183220.

The previous prime is 6549677. The next prime is 6549689. The reversal of 6549678 is 8769456.

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 (6549671) 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 5 ways as a sum of consecutive naturals, for example, 181918 + ... + 181953.

It is an arithmetic number, because the mean of its divisors is an integer number (1182584).

Almost surely, 2^6549678 is an apocalyptic number.

6549678 is an abundant number, since it is smaller than the sum of its proper divisors (7641330).

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

6549678 is a wasteful number, since it uses less digits than its factorization.

6549678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363879 (or 363876 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 6549678 is about 2559.2338697352. The cubic root of 6549678 is about 187.0997970750.

It can be divided in two parts, 6549 and 678, that added together give a palindrome (7227).

The spelling of 6549678 in words is "six million, five hundred forty-nine thousand, six hundred seventy-eight".