63680992 has 12 divisors (see below), whose sum is σ = 125372016. Its totient is φ = 31840480.

The previous prime is 63680987. The next prime is 63680993. The reversal of 63680992 is 29908636.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63680993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 994984 + ... + 995047.

It is an arithmetic number, because the mean of its divisors is an integer number (10447668).

Almost surely, 2^63680992 is an apocalyptic number.

It is an amenable number.

63680992 is a deficient number, since it is larger than the sum of its proper divisors (61691024).

63680992 is a wasteful number, since it uses less digits than its factorization.

63680992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1990041 (or 1990033 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 43.

The square root of 63680992 is about 7980.0370926456. The cubic root of 63680992 is about 399.3342926991.

The spelling of 63680992 in words is "sixty-three million, six hundred eighty thousand, nine hundred ninety-two".