63709692 has 12 divisors (see below), whose sum is σ = 148655976. Its totient is φ = 21236560.

The previous prime is 63709687. The next prime is 63709741. The reversal of 63709692 is 29690736.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2654559 + ... + 2654582.

It is an arithmetic number, because the mean of its divisors is an integer number (12387998).

Almost surely, 2^63709692 is an apocalyptic number.

It is an amenable number.

63709692 is an abundant number, since it is smaller than the sum of its proper divisors (84946284).

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

63709692 is a wasteful number, since it uses less digits than its factorization.

63709692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5309148 (or 5309146 counting only the distinct ones).

The product of its (nonzero) digits is 122472, while the sum is 42.

The square root of 63709692 is about 7981.8351273376. The cubic root of 63709692 is about 399.3942748723.

The spelling of 63709692 in words is "sixty-three million, seven hundred nine thousand, six hundred ninety-two".