63994672 has 20 divisors (see below), whose sum is σ = 141702736. Its totient is φ = 27426240.

The previous prime is 63994669. The next prime is 63994687. The reversal of 63994672 is 27649936.

63994672 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 3 ways as a sum of consecutive naturals, for example, 285579 + ... + 285802.

Almost surely, 2^63994672 is an apocalyptic number.

It is an amenable number.

63994672 is an abundant number, since it is smaller than the sum of its proper divisors (77708064).

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

63994672 is a wasteful number, since it uses less digits than its factorization.

63994672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 571396 (or 571390 counting only the distinct ones).

The product of its digits is 489888, while the sum is 46.

The square root of 63994672 is about 7999.6669930691. Note that the first 3 decimals coincide. The cubic root of 63994672 is about 399.9888996920.

The spelling of 63994672 in words is "sixty-three million, nine hundred ninety-four thousand, six hundred seventy-two".