1198803 has 4 divisors (see below), whose sum is σ = 1598408. Its totient is φ = 799200.

The previous prime is 1198793. The next prime is 1198811. The reversal of 1198803 is 3088911.

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

It is not a de Polignac number, because 1198803 - 2⁹ = 1198291 is a prime.

It is an Ulam number.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1198853) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 199798 + ... + 199803.

It is an arithmetic number, because the mean of its divisors is an integer number (399602).

2^1198803 is an apocalyptic number.

1198803 is a deficient number, since it is larger than the sum of its proper divisors (399605).

1198803 is an equidigital number, since it uses as much as digits as its factorization.

1198803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399604.

The product of its (nonzero) digits is 1728, while the sum is 30.

The square root of 1198803 is about 1094.8986254444. The cubic root of 1198803 is about 106.2305117660.

The spelling of 1198803 in words is "one million, one hundred ninety-eight thousand, eight hundred three".