63720632 has 8 divisors (see below), whose sum is σ = 119476200. Its totient is φ = 31860312.

The previous prime is 63720619. The next prime is 63720667. The reversal of 63720632 is 23602736.

63720632 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 63720595 and 63720604.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 3982532 + ... + 3982547.

It is an arithmetic number, because the mean of its divisors is an integer number (14934525).

Almost surely, 2^63720632 is an apocalyptic number.

It is an amenable number.

63720632 is a deficient number, since it is larger than the sum of its proper divisors (55755568).

63720632 is a wasteful number, since it uses less digits than its factorization.

63720632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7965085 (or 7965081 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 29.

The square root of 63720632 is about 7982.5204039827. The cubic root of 63720632 is about 399.4171344151.

The spelling of 63720632 in words is "sixty-three million, seven hundred twenty thousand, six hundred thirty-two".