63216412 has 24 divisors (see below), whose sum is σ = 128217600. Its totient is φ = 26710320.

The previous prime is 63216371. The next prime is 63216451. The reversal of 63216412 is 21461236.

63216412 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 7 ways as a sum of consecutive naturals, for example, 13912 + ... + 17887.

It is an arithmetic number, because the mean of its divisors is an integer number (5342400).

Almost surely, 2^63216412 is an apocalyptic number.

It is an amenable number.

63216412 is an abundant number, since it is smaller than the sum of its proper divisors (65001188).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

63216412 is a wasteful number, since it uses less digits than its factorization.

63216412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31881 (or 31879 counting only the distinct ones).

The product of its digits is 1728, while the sum is 25.

The square root of 63216412 is about 7950.8749204097. The cubic root of 63216412 is about 398.3608168724.

Adding to 63216412 its reverse (21461236), we get a palindrome (84677648).

The spelling of 63216412 in words is "sixty-three million, two hundred sixteen thousand, four hundred twelve".