63789960 has 128 divisors (see below), whose sum is σ = 208615680. Its totient is φ = 15510528.

The previous prime is 63789959. The next prime is 63789977. The reversal of 63789960 is 6998736.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 160482 + ... + 160878.

It is an arithmetic number, because the mean of its divisors is an integer number (1629810).

Almost surely, 2^63789960 is an apocalyptic number.

63789960 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63789960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104307840).

63789960 is an abundant number, since it is smaller than the sum of its proper divisors (144825720).

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

63789960 is a wasteful number, since it uses less digits than its factorization.

63789960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 527 (or 523 counting only the distinct ones).

The product of its (nonzero) digits is 489888, while the sum is 48.

The square root of 63789960 is about 7986.8617115861. The cubic root of 63789960 is about 399.5619370940.

The spelling of 63789960 in words is "sixty-three million, seven hundred eighty-nine thousand, nine hundred sixty".