63938960 has 40 divisors (see below), whose sum is σ = 152682936. Its totient is φ = 24883200.

The previous prime is 63938951. The next prime is 63938983. The reversal of 63938960 is 6983936.

63938960 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 31494544 + 32444416 = 5612^2 + 5696^2 .

It is a tau number, because it is divible by the number of its divisors (40).

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, 7841 + ... + 13760.

Almost surely, 2^63938960 is an apocalyptic number.

It is an amenable number.

63938960 is an abundant number, since it is smaller than the sum of its proper divisors (88743976).

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

63938960 is a wasteful number, since it uses less digits than its factorization.

63938960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21651 (or 21645 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 44.

The square root of 63938960 is about 7996.1840899269. The cubic root of 63938960 is about 399.8727928835.

The spelling of 63938960 in words is "sixty-three million, nine hundred thirty-eight thousand, nine hundred sixty".