63489216 has 112 divisors (see below), whose sum is σ = 194356736. Its totient is φ = 17915904.

The previous prime is 63489211. The next prime is 63489253. The reversal of 63489216 is 61298436.

It is a tau number, because it is divible by the number of its divisors (112).

It is not an unprimeable number, because it can be changed into a prime (63489211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130125 + ... + 130611.

It is an arithmetic number, because the mean of its divisors is an integer number (1735328).

Almost surely, 2^63489216 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 63489216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97178368).

63489216 is an abundant number, since it is smaller than the sum of its proper divisors (130867520).

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

63489216 is a wasteful number, since it uses less digits than its factorization.

63489216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 606 (or 596 counting only the distinct ones).

The product of its digits is 62208, while the sum is 39.

The square root of 63489216 is about 7968.0120481837. The cubic root of 63489216 is about 398.9330230980.

The spelling of 63489216 in words is "sixty-three million, four hundred eighty-nine thousand, two hundred sixteen".