63947456 has 28 divisors (see below), whose sum is σ = 127558800. Its totient is φ = 31806720.

The previous prime is 63947453. The next prime is 63947467. The reversal of 63947456 is 65474936.

63947456 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×63947456³ (a number of 24 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (63947453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10226 + ... + 15246.

Almost surely, 2^63947456 is an apocalyptic number.

It is an amenable number.

63947456 is a deficient number, since it is larger than the sum of its proper divisors (63611344).

63947456 is a wasteful number, since it uses less digits than its factorization.

63947456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5232 (or 5222 counting only the distinct ones).

The product of its digits is 544320, while the sum is 44.

The square root of 63947456 is about 7996.7153256822. The cubic root of 63947456 is about 399.8905033623.

The spelling of 63947456 in words is "sixty-three million, nine hundred forty-seven thousand, four hundred fifty-six".