127840889 has 8 divisors (see below), whose sum is σ = 139618080. Its totient is φ = 116089600.

The previous prime is 127840879. The next prime is 127840913. The reversal of 127840889 is 988048721.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 127840889 - 2¹⁶ = 127775353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (127840879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4697 + ... + 16665.

It is an arithmetic number, because the mean of its divisors is an integer number (17452260).

Almost surely, 2^127840889 is an apocalyptic number.

It is an amenable number.

127840889 is a deficient number, since it is larger than the sum of its proper divisors (11777191).

127840889 is a wasteful number, since it uses less digits than its factorization.

127840889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12951.

The product of its (nonzero) digits is 258048, while the sum is 47.

The square root of 127840889 is about 11306.6745332127. The cubic root of 127840889 is about 503.7595132710.

The spelling of 127840889 in words is "one hundred twenty-seven million, eight hundred forty thousand, eight hundred eighty-nine".