63389472 has 96 divisors (see below), whose sum is σ = 182891520. Its totient is φ = 19134720.

The previous prime is 63389471. The next prime is 63389503. The reversal of 63389472 is 27498336.

It is a tau number, because it is divible by the number of its divisors (96).

It is not an unprimeable number, because it can be changed into a prime (63389471) 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, 41197 + ... + 42707.

It is an arithmetic number, because the mean of its divisors is an integer number (1905120).

Almost surely, 2^63389472 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 63389472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91445760).

63389472 is an abundant number, since it is smaller than the sum of its proper divisors (119502048).

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

63389472 is a wasteful number, since it uses less digits than its factorization.

63389472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1566 (or 1558 counting only the distinct ones).

The product of its digits is 217728, while the sum is 42.

The square root of 63389472 is about 7961.7505612773. The cubic root of 63389472 is about 398.7240005585.

The spelling of 63389472 in words is "sixty-three million, three hundred eighty-nine thousand, four hundred seventy-two".