989071 has 2 divisors, whose sum is σ = 989072. Its totient is φ = 989070.

The previous prime is 989059. The next prime is 989081. The reversal of 989071 is 170989.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 989071 - 2¹¹ = 987023 is a prime.

It is a super-2 number, since 2×989071² = 1956522886082, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (989011) 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 as a sum of consecutive naturals, namely, 494535 + 494536.

It is an arithmetic number, because the mean of its divisors is an integer number (494536).

2⁹⁸⁹⁰⁷¹ is an apocalyptic number.

989071 is a deficient number, since it is larger than the sum of its proper divisors (1).

989071 is an equidigital number, since it uses as much as digits as its factorization.

989071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 34.

The square root of 989071 is about 994.5204874712. The cubic root of 989071 is about 99.6343647379.

The spelling of 989071 in words is "nine hundred eighty-nine thousand, seventy-one".