6478549 has 8 divisors (see below), whose sum is σ = 8077248. Its totient is φ = 5048160.

The previous prime is 6478543. The next prime is 6478559. The reversal of 6478549 is 9458746.

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 6478549 - 2⁷ = 6478421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6478543) 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, 41992 + ... + 42145.

It is an arithmetic number, because the mean of its divisors is an integer number (1009656).

Almost surely, 2^6478549 is an apocalyptic number.

It is an amenable number.

6478549 is a deficient number, since it is larger than the sum of its proper divisors (1598699).

6478549 is a wasteful number, since it uses less digits than its factorization.

6478549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84155.

The product of its digits is 241920, while the sum is 43.

The square root of 6478549 is about 2545.2993929988. The cubic root of 6478549 is about 186.4200339037.

The spelling of 6478549 in words is "six million, four hundred seventy-eight thousand, five hundred forty-nine".