6543238 has 8 divisors (see below), whose sum is σ = 10569888. Its totient is φ = 3019944.

The previous prime is 6543233. The next prime is 6543259. The reversal of 6543238 is 8323456.

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

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 (6543233) 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, 125806 + ... + 125857.

It is an arithmetic number, because the mean of its divisors is an integer number (1321236).

Almost surely, 2^6543238 is an apocalyptic number.

6543238 is a deficient number, since it is larger than the sum of its proper divisors (4026650).

6543238 is a wasteful number, since it uses less digits than its factorization.

6543238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251678.

The product of its digits is 17280, while the sum is 31.

The square root of 6543238 is about 2557.9753712653. The cubic root of 6543238 is about 187.0384547300.

The spelling of 6543238 in words is "six million, five hundred forty-three thousand, two hundred thirty-eight".