63463728 has 20 divisors (see below), whose sum is σ = 163948088. Its totient is φ = 21154560.

The previous prime is 63463723. The next prime is 63463783. The reversal of 63463728 is 82736436.

It is not an unprimeable number, because it can be changed into a prime (63463721) 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, 661033 + ... + 661128.

Almost surely, 2^63463728 is an apocalyptic number.

It is an amenable number.

63463728 is an abundant number, since it is smaller than the sum of its proper divisors (100484360).

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

63463728 is a wasteful number, since it uses less digits than its factorization.

63463728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1322172 (or 1322166 counting only the distinct ones).

The product of its digits is 145152, while the sum is 39.

The square root of 63463728 is about 7966.4124924586. The cubic root of 63463728 is about 398.8796315327.

The spelling of 63463728 in words is "sixty-three million, four hundred sixty-three thousand, seven hundred twenty-eight".