63720696 has 32 divisors (see below), whose sum is σ = 171556560. Its totient is φ = 19606272.

The previous prime is 63720667. The next prime is 63720719. The reversal of 63720696 is 69602736.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101805 + ... + 102428.

Almost surely, 2^63720696 is an apocalyptic number.

It is an amenable number.

63720696 is an abundant number, since it is smaller than the sum of its proper divisors (107835864).

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

63720696 is a wasteful number, since it uses less digits than its factorization.

63720696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204255 (or 204251 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 39.

The square root of 63720696 is about 7982.5244127406. The cubic root of 63720696 is about 399.4172681379.

The spelling of 63720696 in words is "sixty-three million, seven hundred twenty thousand, six hundred ninety-six".