63680412 has 12 divisors (see below), whose sum is σ = 148587656. Its totient is φ = 21226800.

The previous prime is 63680389. The next prime is 63680423. The reversal of 63680412 is 21408636.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 63680412.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2653339 + ... + 2653362.

Almost surely, 2^63680412 is an apocalyptic number.

It is an amenable number.

63680412 is an abundant number, since it is smaller than the sum of its proper divisors (84907244).

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

63680412 is a wasteful number, since it uses less digits than its factorization.

63680412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5306708 (or 5306706 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 63680412 is about 7980.0007518797. Note that the first 3 decimals coincide. The cubic root of 63680412 is about 399.3330803300. Note that the first 3 decimals are identical.

The spelling of 63680412 in words is "sixty-three million, six hundred eighty thousand, four hundred twelve".