63447456 has 48 divisors (see below), whose sum is σ = 167076000. Its totient is φ = 21082368.

The previous prime is 63447437. The next prime is 63447457. The reversal of 63447456 is 65474436.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (63447457) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36495 + ... + 38193.

It is an arithmetic number, because the mean of its divisors is an integer number (3480750).

Almost surely, 2^63447456 is an apocalyptic number.

It is an amenable number.

63447456 is an abundant number, since it is smaller than the sum of its proper divisors (103628544).

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

63447456 is a wasteful number, since it uses less digits than its factorization.

63447456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2101 (or 2093 counting only the distinct ones).

The product of its digits is 241920, while the sum is 39.

The square root of 63447456 is about 7965.3911391720. The cubic root of 63447456 is about 398.8455379154.

It can be divided in two parts, 63447 and 456, that added together give a triangular number (63903 = T₃₅₇).

The spelling of 63447456 in words is "sixty-three million, four hundred forty-seven thousand, four hundred fifty-six".