6549789 has 8 divisors (see below), whose sum is σ = 8782560. Its totient is φ = 4341776.

The previous prime is 6549787. The next prime is 6549797. The reversal of 6549789 is 9879456.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6549789 - 2¹ = 6549787 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6549787) 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, 5562 + ... + 6635.

It is an arithmetic number, because the mean of its divisors is an integer number (1097820).

Almost surely, 2^6549789 is an apocalyptic number.

It is an amenable number.

6549789 is a deficient number, since it is larger than the sum of its proper divisors (2232771).

6549789 is a wasteful number, since it uses less digits than its factorization.

6549789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12379.

The product of its digits is 544320, while the sum is 48.

The square root of 6549789 is about 2559.2555558209. The cubic root of 6549789 is about 187.1008540206.

The spelling of 6549789 in words is "six million, five hundred forty-nine thousand, seven hundred eighty-nine".