63489456 has 60 divisors (see below), whose sum is σ = 179963680. Its totient is φ = 20891520.

The previous prime is 63489451. The next prime is 63489467. The reversal of 63489456 is 65498436.

63489456 is a `hidden beast` number, since 634 + 8 + 9 + 4 + 5 + 6 = 666.

It is a super-2 number, since 2×63489456² = 8061822046351872, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (63489451) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8586 + ... + 14166.

Almost surely, 2^63489456 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63489456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89981840).

63489456 is an abundant number, since it is smaller than the sum of its proper divisors (116474224).

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

63489456 is a wasteful number, since it uses less digits than its factorization.

63489456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5674 (or 5665 counting only the distinct ones).

The product of its digits is 622080, while the sum is 45.

The square root of 63489456 is about 7968.0271083876. The cubic root of 63489456 is about 398.9335257755.

The spelling of 63489456 in words is "sixty-three million, four hundred eighty-nine thousand, four hundred fifty-six".