63680680 has 32 divisors (see below), whose sum is σ = 163751040. Its totient is φ = 21833280.

The previous prime is 63680653. The next prime is 63680689. The reversal of 63680680 is 8608636.

63680680 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 (37) 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 (63680689) 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 7 ways as a sum of consecutive naturals, for example, 113436 + ... + 113995.

It is an arithmetic number, because the mean of its divisors is an integer number (5117220).

Almost surely, 2^63680680 is an apocalyptic number.

It is an amenable number.

63680680 is an abundant number, since it is smaller than the sum of its proper divisors (100070360).

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

63680680 is a wasteful number, since it uses less digits than its factorization.

63680680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227449 (or 227445 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 63680680 is about 7980.0175438404. The cubic root of 63680680 is about 399.3336405291. Note that the first 3 decimals are identical.

The spelling of 63680680 in words is "sixty-three million, six hundred eighty thousand, six hundred eighty".