1003398 has 32 divisors (see below), whose sum is σ = 2287872. Its totient is φ = 290400.

The previous prime is 1003397. The next prime is 1003411. The reversal of 1003398 is 8933001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1003397) 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, 1188 + ... + 1848.

It is an arithmetic number, because the mean of its divisors is an integer number (71496).

2^1003398 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1003398, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1143936).

1003398 is an abundant number, since it is smaller than the sum of its proper divisors (1284474).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1003398 is a wasteful number, since it uses less digits than its factorization.

1003398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700.

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 1003398 is about 1001.6975591465. The cubic root of 1003398 is about 100.1131386149.

Adding to 1003398 its reverse (8933001), we get a palindrome (9936399).

The spelling of 1003398 in words is "one million, three thousand, three hundred ninety-eight".