989275127 has 2 divisors, whose sum is σ = 989275128. Its totient is φ = 989275126.

The previous prime is 989275121. The next prime is 989275159. The reversal of 989275127 is 721572989.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 989275127 - 2¹⁶ = 989209591 is a prime.

It is a super-2 number, since 2×989275127² = 1957330553801732258, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (989275121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 494637563 + 494637564.

It is an arithmetic number, because the mean of its divisors is an integer number (494637564).

Almost surely, 2^989275127 is an apocalyptic number.

989275127 is a deficient number, since it is larger than the sum of its proper divisors (1).

989275127 is an equidigital number, since it uses as much as digits as its factorization.

989275127 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 635040, while the sum is 50.

The square root of 989275127 is about 31452.7443476718. The cubic root of 989275127 is about 996.4121853137.

The spelling of 989275127 in words is "nine hundred eighty-nine million, two hundred seventy-five thousand, one hundred twenty-seven".