1404003 has 4 divisors (see below), whose sum is σ = 1872008. Its totient is φ = 936000.

The previous prime is 1403981. The next prime is 1404059. The reversal of 1404003 is 3004041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3004041 = 3 ⋅1001347.

It is not a de Polignac number, because 1404003 - 2⁵ = 1403971 is a prime.

It is a D-number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1404003.

It is not an unprimeable number, because it can be changed into a prime (1404503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 233998 + ... + 234003.

It is an arithmetic number, because the mean of its divisors is an integer number (468002).

2^1404003 is an apocalyptic number.

1404003 is a deficient number, since it is larger than the sum of its proper divisors (468005).

1404003 is an equidigital number, since it uses as much as digits as its factorization.

1404003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468004.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 1404003 is about 1184.9063254114. The cubic root of 1404003 is about 111.9754144590.

Adding to 1404003 its reverse (3004041), we get a palindrome (4408044).

The spelling of 1404003 in words is "one million, four hundred four thousand, three".