1098193 has 2 divisors, whose sum is σ = 1098194. Its totient is φ = 1098192.

The previous prime is 1098191. The next prime is 1098203. The reversal of 1098193 is 3918901.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 589824 + 508369 = 768^2 + 713^2 .

It is a cyclic number.

It is not a de Polignac number, because 1098193 - 2¹ = 1098191 is a prime.

Together with 1098191, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1098191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 549096 + 549097.

It is an arithmetic number, because the mean of its divisors is an integer number (549097).

2^1098193 is an apocalyptic number.

It is an amenable number.

1098193 is a deficient number, since it is larger than the sum of its proper divisors (1).

1098193 is an equidigital number, since it uses as much as digits as its factorization.

1098193 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 31.

The square root of 1098193 is about 1047.9470406466. The cubic root of 1098193 is about 103.1714554089.

The spelling of 1098193 in words is "one million, ninety-eight thousand, one hundred ninety-three".