1099798 has 16 divisors (see below), whose sum is σ = 1996704. Its totient is φ = 443520.

The previous prime is 1099793. The next prime is 1099799. The reversal of 1099798 is 8979901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1099793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2073 + ... + 2548.

It is an arithmetic number, because the mean of its divisors is an integer number (124794).

2^1099798 is an apocalyptic number.

1099798 is a deficient number, since it is larger than the sum of its proper divisors (896906).

1099798 is a wasteful number, since it uses less digits than its factorization.

1099798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4647.

The product of its (nonzero) digits is 40824, while the sum is 43.

The square root of 1099798 is about 1048.7125440272. The cubic root of 1099798 is about 103.2216923533.

The spelling of 1099798 in words is "one million, ninety-nine thousand, seven hundred ninety-eight".