63487928 has 64 divisors (see below), whose sum is σ = 147096000. Its totient is φ = 25589760.

The previous prime is 63487913. The next prime is 63487933. The reversal of 63487928 is 82978436.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45968 + ... + 47328.

It is an arithmetic number, because the mean of its divisors is an integer number (2298375).

Almost surely, 2^63487928 is an apocalyptic number.

63487928 is a gapful number since it is divisible by the number (68) 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 63487928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73548000).

63487928 is an abundant number, since it is smaller than the sum of its proper divisors (83608072).

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

63487928 is a wasteful number, since it uses less digits than its factorization.

63487928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1405 (or 1387 counting only the distinct ones).

The product of its digits is 580608, while the sum is 47.

The square root of 63487928 is about 7967.9312246028. The cubic root of 63487928 is about 398.9303253737.

The spelling of 63487928 in words is "sixty-three million, four hundred eighty-seven thousand, nine hundred twenty-eight".