1398203 has 8 divisors (see below), whose sum is σ = 1451520. Its totient is φ = 1345960.

The previous prime is 1398197. The next prime is 1398209. The reversal of 1398203 is 3028931.

It is an interprime number because it is at equal distance from previous prime (1398197) and next prime (1398209).

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

It is a cyclic number.

It is not a de Polignac number, because 1398203 - 2⁶ = 1398139 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a nialpdrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (1398209) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 3128 + ... + 3546.

It is an arithmetic number, because the mean of its divisors is an integer number (181440).

2^1398203 is an apocalyptic number.

1398203 is a deficient number, since it is larger than the sum of its proper divisors (53317).

1398203 is an equidigital number, since it uses as much as digits as its factorization.

1398203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 537.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 1398203 is about 1182.4563416888. The cubic root of 1398203 is about 111.8210098092.

The spelling of 1398203 in words is "one million, three hundred ninety-eight thousand, two hundred three".