1098903 has 16 divisors (see below), whose sum is σ = 1662080. Its totient is φ = 640224.

The previous prime is 1098847. The next prime is 1098953. The reversal of 1098903 is 3098901.

It is a happy number.

1098903 is a nontrivial binomial coefficient, being equal to C(1483, 2).

It is not a de Polignac number, because 1098903 - 2¹⁰ = 1097879 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a zygodrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1098953) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1 + ... + 1482.

It is an arithmetic number, because the mean of its divisors is an integer number (103880).

2^1098903 is an apocalyptic number.

1098903 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1098903 is the 1482-nd triangular number.

1098903 is a deficient number, since it is larger than the sum of its proper divisors (563177).

1098903 is a wasteful number, since it uses less digits than its factorization.

1098903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1518.

The product of its (nonzero) digits is 1944, while the sum is 30.

The square root of 1098903 is about 1048.2857434879. The cubic root of 1098903 is about 103.1936846385.

The spelling of 1098903 in words is "one million, ninety-eight thousand, nine hundred three".