63789220 has 24 divisors (see below), whose sum is σ = 146135808. Its totient is φ = 23196000.

The previous prime is 63789217. The next prime is 63789233. The reversal of 63789220 is 2298736.

63789220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 63789220.

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, 144756 + ... + 145195.

It is an arithmetic number, because the mean of its divisors is an integer number (6088992).

Almost surely, 2^63789220 is an apocalyptic number.

It is an amenable number.

63789220 is an abundant number, since it is smaller than the sum of its proper divisors (82346588).

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

63789220 is a wasteful number, since it uses less digits than its factorization.

63789220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289971 (or 289969 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 63789220 is about 7986.8153853711. The cubic root of 63789220 is about 399.5603920391.

It can be divided in two parts, 63789 and 220, that added together give a square (64009 = 253²).

The spelling of 63789220 in words is "sixty-three million, seven hundred eighty-nine thousand, two hundred twenty".