989127 has 6 divisors (see below), whose sum is σ = 1428752. Its totient is φ = 659412.

The previous prime is 989123. The next prime is 989171. The reversal of 989127 is 721989.

It is a happy number.

It is not a de Polignac number, because 989127 - 2² = 989123 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 989091 and 989100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (989123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 54943 + ... + 54960.

2⁹⁸⁹¹²⁷ is an apocalyptic number.

989127 is a deficient number, since it is larger than the sum of its proper divisors (439625).

989127 is a wasteful number, since it uses less digits than its factorization.

989127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109909 (or 109906 counting only the distinct ones).

The product of its digits is 9072, while the sum is 36.

The square root of 989127 is about 994.5486413444. The cubic root of 989127 is about 99.6362450947.

The spelling of 989127 in words is "nine hundred eighty-nine thousand, one hundred twenty-seven".