1098203 has 2 divisors, whose sum is σ = 1098204. Its totient is φ = 1098202.

The previous prime is 1098193. The next prime is 1098211. The reversal of 1098203 is 3028901.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1098203 - 2⁴ = 1098187 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1098233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 549101 + 549102.

It is an arithmetic number, because the mean of its divisors is an integer number (549102).

2^1098203 is an apocalyptic number.

1098203 is a deficient number, since it is larger than the sum of its proper divisors (1).

1098203 is an equidigital number, since it uses as much as digits as its factorization.

1098203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 1098203 is about 1047.9518118692. The cubic root of 1098203 is about 103.1717685632.

The spelling of 1098203 in words is "one million, ninety-eight thousand, two hundred three".