988099 has 4 divisors (see below), whose sum is σ = 1129264. Its totient is φ = 846936.

The previous prime is 988093. The next prime is 988109. The reversal of 988099 is 990889.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 988099 - 2⁵ = 988067 is a prime.

It is a Duffinian number.

988099 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (988093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70572 + ... + 70585.

It is an arithmetic number, because the mean of its divisors is an integer number (282316).

2⁹⁸⁸⁰⁹⁹ is an apocalyptic number.

988099 is a deficient number, since it is larger than the sum of its proper divisors (141165).

988099 is a wasteful number, since it uses less digits than its factorization.

988099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141164.

The product of its (nonzero) digits is 46656, while the sum is 43.

The square root of 988099 is about 994.0316896357. The cubic root of 988099 is about 99.6017158030.

The spelling of 988099 in words is "nine hundred eighty-eight thousand, ninety-nine".