127708992 has 42 divisors (see below), whose sum is σ = 366056418. Its totient is φ = 42569472.

The previous prime is 127708991. The next prime is 127709003. The reversal of 127708992 is 299807721.

It can be written as a sum of positive squares in only one way, i.e., 114575616 + 13133376 = 10704^2 + 3624^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127708991) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 110283 + ... + 111434.

It is an arithmetic number, because the mean of its divisors is an integer number (8715629).

Almost surely, 2^127708992 is an apocalyptic number.

127708992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

127708992 is an abundant number, since it is smaller than the sum of its proper divisors (238347426).

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

127708992 is a wasteful number, since it uses less digits than its factorization.

127708992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221735 (or 221722 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 45.

The square root of 127708992 is about 11300.8403227371. The cubic root of 127708992 is about 503.5862060894.

The spelling of 127708992 in words is "one hundred twenty-seven million, seven hundred eight thousand, nine hundred ninety-two".