6543212 has 24 divisors (see below), whose sum is σ = 12759600. Its totient is φ = 2915136.

The previous prime is 6543203. The next prime is 6543223. The reversal of 6543212 is 2123456.

6543212 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

It is an Ulam number.

It is an alternating number because its digits alternate between even and odd.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 662 + ... + 3677.

It is an arithmetic number, because the mean of its divisors is an integer number (531650).

Almost surely, 2^6543212 is an apocalyptic number.

It is an amenable number.

6543212 is a deficient number, since it is larger than the sum of its proper divisors (6216388).

6543212 is a wasteful number, since it uses less digits than its factorization.

6543212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4385 (or 4383 counting only the distinct ones).

The product of its digits is 1440, while the sum is 23.

The square root of 6543212 is about 2557.9702891160. The cubic root of 6543212 is about 187.0382069930.

Adding to 6543212 its reverse (2123456), we get a palindrome (8666668).

The spelling of 6543212 in words is "six million, five hundred forty-three thousand, two hundred twelve".