6549845 has 16 divisors (see below), whose sum is σ = 8382528. Its totient is φ = 4896000.

The previous prime is 6549839. The next prime is 6549857. The reversal of 6549845 is 5489456.

It is a happy number.

It is not a de Polignac number, because 6549845 - 2⁸ = 6549589 is a prime.

It is a Duffinian number.

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 15 ways as a sum of consecutive naturals, for example, 21182 + ... + 21488.

It is an arithmetic number, because the mean of its divisors is an integer number (523908).

Almost surely, 2^6549845 is an apocalyptic number.

It is an amenable number.

6549845 is a deficient number, since it is larger than the sum of its proper divisors (1832683).

6549845 is a wasteful number, since it uses less digits than its factorization.

With its successor (6549846) it forms a Ruth-Aaron pair, since the sum of their distinct prime factors is the same (580).

6549845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 580.

The product of its digits is 172800, while the sum is 41.

The square root of 6549845 is about 2559.2664964790. The cubic root of 6549845 is about 187.1013872499.

The spelling of 6549845 in words is "six million, five hundred forty-nine thousand, eight hundred forty-five".