63907980 has 24 divisors (see below), whose sum is σ = 178942512. Its totient is φ = 17042112.

The previous prime is 63907951. The next prime is 63907993. The reversal of 63907980 is 8970936.

It is a happy number.

63907980 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 7 ways as a sum of consecutive naturals, for example, 532507 + ... + 532626.

It is an arithmetic number, because the mean of its divisors is an integer number (7455938).

Almost surely, 2^63907980 is an apocalyptic number.

63907980 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

63907980 is an abundant number, since it is smaller than the sum of its proper divisors (115034532).

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

63907980 is a wasteful number, since it uses less digits than its factorization.

63907980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1065145 (or 1065143 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 42.

The square root of 63907980 is about 7994.2466812077. The cubic root of 63907980 is about 399.8081997130.

The spelling of 63907980 in words is "sixty-three million, nine hundred seven thousand, nine hundred eighty".