63748656 has 30 divisors (see below), whose sum is σ = 178408100. Its totient is φ = 21249504.

The previous prime is 63748651. The next prime is 63748681. The reversal of 63748656 is 65684736.

63748656 is a `hidden beast` number, since 637 + 4 + 8 + 6 + 5 + 6 = 666.

63748656 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-2 number, since 2×63748656² = 8127782283612672, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (63748651) 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 5 ways as a sum of consecutive naturals, for example, 221206 + ... + 221493.

Almost surely, 2^63748656 is an apocalyptic number.

It is an amenable number.

63748656 is an abundant number, since it is smaller than the sum of its proper divisors (114659444).

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

63748656 is a wasteful number, since it uses less digits than its factorization.

63748656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442713 (or 442704 counting only the distinct ones).

The product of its digits is 725760, while the sum is 45.

The square root of 63748656 is about 7984.2755463473. The cubic root of 63748656 is about 399.4756796875.

The spelling of 63748656 in words is "sixty-three million, seven hundred forty-eight thousand, six hundred fifty-six".