127992 has 16 divisors (see below), whose sum is σ = 320040. Its totient is φ = 42656.

The previous prime is 127979. The next prime is 127997. The reversal of 127992 is 299721.

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 127992.

It is not an unprimeable number, because it can be changed into a prime (127997) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2643 + ... + 2690.

2¹²⁷⁹⁹² is an apocalyptic number.

127992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

127992 is an abundant number, since it is smaller than the sum of its proper divisors (192048).

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

127992 is a wasteful number, since it uses less digits than its factorization.

127992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5342 (or 5338 counting only the distinct ones).

The product of its digits is 2268, while the sum is 30.

The square root of 127992 is about 357.7596958854. The cubic root of 127992 is about 50.3957920397.

The spelling of 127992 in words is "one hundred twenty-seven thousand, nine hundred ninety-two".