63820216 has 16 divisors (see below), whose sum is σ = 124866000. Its totient is φ = 30522624.

The previous prime is 63820201. The next prime is 63820223. The reversal of 63820216 is 61202836.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 173241 + ... + 173608.

It is an arithmetic number, because the mean of its divisors is an integer number (7804125).

Almost surely, 2^63820216 is an apocalyptic number.

It is an amenable number.

63820216 is a deficient number, since it is larger than the sum of its proper divisors (61045784).

63820216 is a wasteful number, since it uses less digits than its factorization.

63820216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346878 (or 346874 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 63820216 is about 7988.7555977136. The cubic root of 63820216 is about 399.6250987324.

The spelling of 63820216 in words is "sixty-three million, eight hundred twenty thousand, two hundred sixteen".