127639992 has 16 divisors (see below), whose sum is σ = 319100040. Its totient is φ = 42546656.

The previous prime is 127639987. The next prime is 127640003. The reversal of 127639992 is 299936721.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2659143 + ... + 2659190.

Almost surely, 2^127639992 is an apocalyptic number.

127639992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

127639992 is an abundant number, since it is smaller than the sum of its proper divisors (191460048).

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

127639992 is a wasteful number, since it uses less digits than its factorization.

127639992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5318342 (or 5318338 counting only the distinct ones).

The product of its digits is 367416, while the sum is 48.

The square root of 127639992 is about 11297.7870399472. The cubic root of 127639992 is about 503.4954954108.

The spelling of 127639992 in words is "one hundred twenty-seven million, six hundred thirty-nine thousand, nine hundred ninety-two".