6546638 has 8 divisors (see below), whose sum is σ = 11222832. Its totient is φ = 2805696.

The previous prime is 6546607. The next prime is 6546643. The reversal of 6546638 is 8366456.

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

It is a Curzon 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 3 ways as a sum of consecutive naturals, for example, 233795 + ... + 233822.

It is an arithmetic number, because the mean of its divisors is an integer number (1402854).

Almost surely, 2^6546638 is an apocalyptic number.

6546638 is a deficient number, since it is larger than the sum of its proper divisors (4676194).

6546638 is a wasteful number, since it uses less digits than its factorization.

6546638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 467626.

The product of its digits is 103680, while the sum is 38.

The square root of 6546638 is about 2558.6398730576. The cubic root of 6546638 is about 187.0708454530.

The spelling of 6546638 in words is "six million, five hundred forty-six thousand, six hundred thirty-eight".