63487280 has 20 divisors (see below), whose sum is σ = 147608112. Its totient is φ = 25394880.

The previous prime is 63487247. The next prime is 63487283. The reversal of 63487280 is 8278436.

63487280 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (63487283) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 396716 + ... + 396875.

Almost surely, 2^63487280 is an apocalyptic number.

It is an amenable number.

63487280 is an abundant number, since it is smaller than the sum of its proper divisors (84120832).

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

63487280 is a wasteful number, since it uses less digits than its factorization.

63487280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 793604 (or 793598 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 38.

The square root of 63487280 is about 7967.8905614974. The cubic root of 63487280 is about 398.9289681197.

The spelling of 63487280 in words is "sixty-three million, four hundred eighty-seven thousand, two hundred eighty".