1083403 has 4 divisors (see below), whose sum is σ = 1087240. Its totient is φ = 1079568.

The previous prime is 1083391. The next prime is 1083409. The reversal of 1083403 is 3043801.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3043801 = 863 ⋅3527.

It is a cyclic number.

It is not a de Polignac number, because 1083403 - 2⁵ = 1083371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1083409) 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, 1458 + ... + 2071.

It is an arithmetic number, because the mean of its divisors is an integer number (271810).

2^1083403 is an apocalyptic number.

1083403 is a deficient number, since it is larger than the sum of its proper divisors (3837).

1083403 is an equidigital number, since it uses as much as digits as its factorization.

1083403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3836.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1083403 is about 1040.8664659792. The cubic root of 1083403 is about 102.7062039678.

The spelling of 1083403 in words is "one million, eighty-three thousand, four hundred three".