1097198 has 8 divisors (see below), whose sum is σ = 1690392. Its totient is φ = 533736.

The previous prime is 1097189. The next prime is 1097203. The reversal of 1097198 is 8917901.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 7340 + ... + 7487.

It is an arithmetic number, because the mean of its divisors is an integer number (211299).

2^1097198 is an apocalyptic number.

1097198 is a deficient number, since it is larger than the sum of its proper divisors (593194).

1097198 is a wasteful number, since it uses less digits than its factorization.

1097198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14866.

The product of its (nonzero) digits is 4536, while the sum is 35.

The square root of 1097198 is about 1047.4721953350. The cubic root of 1097198 is about 103.1402870512.

The spelling of 1097198 in words is "one million, ninety-seven thousand, one hundred ninety-eight".