63918472 has 32 divisors (see below), whose sum is σ = 126244800. Its totient is φ = 30279744.

The previous prime is 63918457. The next prime is 63918529. The reversal of 63918472 is 27481936.

63918472 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a pancake number, because a pancake can be divided into 63918472 parts by 11306 straight cuts.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 18463 + ... + 21649.

It is an arithmetic number, because the mean of its divisors is an integer number (3945150).

Almost surely, 2^63918472 is an apocalyptic number.

It is an amenable number.

63918472 is a deficient number, since it is larger than the sum of its proper divisors (62326328).

63918472 is a wasteful number, since it uses less digits than its factorization.

63918472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3325 (or 3321 counting only the distinct ones).

The product of its digits is 72576, while the sum is 40.

The square root of 63918472 is about 7994.9028762081. The cubic root of 63918472 is about 399.8300778264.

The spelling of 63918472 in words is "sixty-three million, nine hundred eighteen thousand, four hundred seventy-two".