63564680 has 32 divisors (see below), whose sum is σ = 146067840. Its totient is φ = 24884160.

The previous prime is 63564659. The next prime is 63564689. The reversal of 63564680 is 8646536.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (63564689) 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, 15026 + ... + 18785.

It is an arithmetic number, because the mean of its divisors is an integer number (4564620).

Almost surely, 2^63564680 is an apocalyptic number.

It is an amenable number.

63564680 is an abundant number, since it is smaller than the sum of its proper divisors (82503160).

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

63564680 is a wasteful number, since it uses less digits than its factorization.

63564680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33869 (or 33865 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 38.

The square root of 63564680 is about 7972.7460764783. The cubic root of 63564680 is about 399.0910192831.

The spelling of 63564680 in words is "sixty-three million, five hundred sixty-four thousand, six hundred eighty".