989099 has 2 divisors, whose sum is σ = 989100. Its totient is φ = 989098.

The previous prime is 989081. The next prime is 989119. The reversal of 989099 is 990989.

It is a weak prime.

It is an emirp because it is prime and its reverse (990989) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 989099 - 2¹² = 985003 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (989029) 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, 494549 + 494550.

It is an arithmetic number, because the mean of its divisors is an integer number (494550).

2⁹⁸⁹⁰⁹⁹ is an apocalyptic number.

989099 is a deficient number, since it is larger than the sum of its proper divisors (1).

989099 is an equidigital number, since it uses as much as digits as its factorization.

989099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 52488, while the sum is 44.

The square root of 989099 is about 994.5345645074. The cubic root of 989099 is about 99.6353049252.

The spelling of 989099 in words is "nine hundred eighty-nine thousand, ninety-nine".