127808920 has 16 divisors (see below), whose sum is σ = 287570160. Its totient is φ = 51123552.

The previous prime is 127808909. The next prime is 127808929. The reversal of 127808920 is 29808721.

It is a self number, because there is not a number n which added to its sum of digits gives 127808920.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127808929) 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, 1597572 + ... + 1597651.

It is an arithmetic number, because the mean of its divisors is an integer number (17973135).

Almost surely, 2^127808920 is an apocalyptic number.

127808920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

127808920 is an abundant number, since it is smaller than the sum of its proper divisors (159761240).

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

127808920 is a wasteful number, since it uses less digits than its factorization.

127808920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3195234 (or 3195230 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 37.

The square root of 127808920 is about 11305.2607223363. The cubic root of 127808920 is about 503.7175182811.

The spelling of 127808920 in words is "one hundred twenty-seven million, eight hundred eight thousand, nine hundred twenty".