63992 has 16 divisors (see below), whose sum is σ = 126600. Its totient is φ = 30240.

The previous prime is 63977. The next prime is 63997. The reversal of 63992 is 29936.

It is a zygodrome in base 2.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 63992.

It is not an unprimeable number, because it can be changed into a prime (63997) by changing a digit.

63992 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59 + ... + 362.

2⁶³⁹⁹² is an apocalyptic number.

It is an amenable number.

63992 is a deficient number, since it is larger than the sum of its proper divisors (62608).

63992 is a wasteful number, since it uses less digits than its factorization.

63992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446 (or 442 counting only the distinct ones).

The product of its digits is 2916, while the sum is 29.

The square root of 63992 is about 252.9664009310. The cubic root of 63992 is about 39.9983332639.

The spelling of 63992 in words is "sixty-three thousand, nine hundred ninety-two".