6543346 has 4 divisors (see below), whose sum is σ = 9815022. Its totient is φ = 3271672.

The previous prime is 6543343. The next prime is 6543347. The reversal of 6543346 is 6433456.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 3463321 + 3080025 = 1861^2 + 1755^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a plaindrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (6543343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1635835 + ... + 1635838.

Almost surely, 2^6543346 is an apocalyptic number.

6543346 is a deficient number, since it is larger than the sum of its proper divisors (3271676).

6543346 is a wasteful number, since it uses less digits than its factorization.

6543346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3271675.

The product of its digits is 25920, while the sum is 31.

The square root of 6543346 is about 2557.9964816239. The cubic root of 6543346 is about 187.0394837843.

It can be divided in two parts, 6543 and 346, that added together give a square (6889 = 83²).

The spelling of 6543346 in words is "six million, five hundred forty-three thousand, three hundred forty-six".