63789216 has 24 divisors (see below), whose sum is σ = 167446944. Its totient is φ = 21263040.

The previous prime is 63789211. The next prime is 63789217. The reversal of 63789216 is 61298736.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (24).

It is not an unprimeable number, because it can be changed into a prime (63789211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 332140 + ... + 332331.

It is an arithmetic number, because the mean of its divisors is an integer number (6976956).

Almost surely, 2^63789216 is an apocalyptic number.

It is an amenable number.

63789216 is an abundant number, since it is smaller than the sum of its proper divisors (103657728).

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

63789216 is a wasteful number, since it uses less digits than its factorization.

63789216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 664484 (or 664476 counting only the distinct ones).

The product of its digits is 108864, while the sum is 42.

The square root of 63789216 is about 7986.8151349584. The cubic root of 63789216 is about 399.5603836874.

The spelling of 63789216 in words is "sixty-three million, seven hundred eighty-nine thousand, two hundred sixteen".