127889 has 8 divisors (see below), whose sum is σ = 138240. Its totient is φ = 117936.

The previous prime is 127877. The next prime is 127913. The reversal of 127889 is 988721.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 127889 - 2⁴ = 127873 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (127819) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 944 + ... + 1070.

It is an arithmetic number, because the mean of its divisors is an integer number (17280).

2¹²⁷⁸⁸⁹ is an apocalyptic number.

127889 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

127889 is a deficient number, since it is larger than the sum of its proper divisors (10351).

127889 is a wasteful number, since it uses less digits than its factorization.

127889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199.

The product of its digits is 8064, while the sum is 35.

The square root of 127889 is about 357.6157155383. The cubic root of 127889 is about 50.3822699456.

The spelling of 127889 in words is "one hundred twenty-seven thousand, eight hundred eighty-nine".