6623212 has 18 divisors (see below), whose sum is σ = 11983524. Its totient is φ = 3202920.

The previous prime is 6623203. The next prime is 6623213. The reversal of 6623212 is 2123266.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (6623213) 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 5 ways as a sum of consecutive naturals, for example, 2983 + ... + 4705.

Almost surely, 2^6623212 is an apocalyptic number.

6623212 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

6623212 is a deficient number, since it is larger than the sum of its proper divisors (5360312).

6623212 is a wasteful number, since it uses less digits than its factorization.

6623212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1789 (or 1756 counting only the distinct ones).

The product of its digits is 864, while the sum is 22.

The square root of 6623212 is about 2573.5601799841. The cubic root of 6623212 is about 187.7973899922.

Adding to 6623212 its reverse (2123266), we get a palindrome (8746478).

The spelling of 6623212 in words is "six million, six hundred twenty-three thousand, two hundred twelve".