127679920 has 40 divisors (see below), whose sum is σ = 300936096. Its totient is φ = 50370048.

The previous prime is 127679897. The next prime is 127679941. The reversal of 127679920 is 29976721.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5092 + ... + 16771.

Almost surely, 2^127679920 is an apocalyptic number.

127679920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

127679920 is an abundant number, since it is smaller than the sum of its proper divisors (173256176).

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

127679920 is a wasteful number, since it uses less digits than its factorization.

127679920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21949 (or 21943 counting only the distinct ones).

The product of its (nonzero) digits is 95256, while the sum is 43.

The square root of 127679920 is about 11299.5539734982. The cubic root of 127679920 is about 503.5479906409.

The spelling of 127679920 in words is "one hundred twenty-seven million, six hundred seventy-nine thousand, nine hundred twenty".