1117198 has 4 divisors (see below), whose sum is σ = 1675800. Its totient is φ = 558598.

The previous prime is 1117177. The next prime is 1117199. The reversal of 1117198 is 8917111.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1117199) 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 as a sum of consecutive naturals, namely, 279298 + ... + 279301.

It is an arithmetic number, because the mean of its divisors is an integer number (418950).

2^1117198 is an apocalyptic number.

1117198 is a deficient number, since it is larger than the sum of its proper divisors (558602).

1117198 is an equidigital number, since it uses as much as digits as its factorization.

1117198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 558601.

The product of its digits is 504, while the sum is 28.

The square root of 1117198 is about 1056.9758748429. The cubic root of 1117198 is about 103.7632063317.

The spelling of 1117198 in words is "one million, one hundred seventeen thousand, one hundred ninety-eight".