1098099 has 6 divisors (see below), whose sum is σ = 1586156. Its totient is φ = 732060.

The previous prime is 1098077. The next prime is 1098101. The reversal of 1098099 is 9908901.

It is not a de Polignac number, because 1098099 - 2¹⁵ = 1065331 is a prime.

It is a super-3 number, since 3×1098099³ = 3972333866020392897, which contains 333 as substring.

It is a Duffinian number.

1098099 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1090099) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 60997 + ... + 61014.

2^1098099 is an apocalyptic number.

1098099 is a deficient number, since it is larger than the sum of its proper divisors (488057).

1098099 is a wasteful number, since it uses less digits than its factorization.

1098099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122017 (or 122014 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 36.

The square root of 1098099 is about 1047.9021900922. The cubic root of 1098099 is about 103.1685116660.

The spelling of 1098099 in words is "one million, ninety-eight thousand, ninety-nine".