6549938 has 8 divisors (see below), whose sum is σ = 9839340. Its totient is φ = 3270160.

The previous prime is 6549937. The next prime is 6549973. The reversal of 6549938 is 8399456.

It can be written as a sum of positive squares in 2 ways, for example, as 6436369 + 113569 = 2537^2 + 337^2 .

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

It is not an unprimeable number, because it can be changed into a prime (6549931) 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 3 ways as a sum of consecutive naturals, for example, 353 + ... + 3636.

Almost surely, 2^6549938 is an apocalyptic number.

6549938 is a deficient number, since it is larger than the sum of its proper divisors (3289402).

6549938 is a wasteful number, since it uses less digits than its factorization.

6549938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4812.

The product of its digits is 233280, while the sum is 44.

The square root of 6549938 is about 2559.2846656830. The cubic root of 6549938 is about 187.1022727847.

The spelling of 6549938 in words is "six million, five hundred forty-nine thousand, nine hundred thirty-eight".