1003923 has 12 divisors (see below), whose sum is σ = 1458808. Its totient is φ = 665280.

The previous prime is 1003913. The next prime is 1003931. The reversal of 1003923 is 3293001.

It is not a de Polignac number, because 1003923 - 2⁴ = 1003907 is a prime.

It is a super-2 number, since 2×1003923² = 2015722779858, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1003896 and 1003905.

It is not an unprimeable number, because it can be changed into a prime (1003913) 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 11 ways as a sum of consecutive naturals, for example, 2811 + ... + 3147.

2^1003923 is an apocalyptic number.

1003923 is a deficient number, since it is larger than the sum of its proper divisors (454885).

1003923 is a wasteful number, since it uses less digits than its factorization.

1003923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 674 (or 671 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

The square root of 1003923 is about 1001.9595800231. The cubic root of 1003923 is about 100.1305960392.

Adding to 1003923 its reverse (3293001), we get a palindrome (4296924).

The spelling of 1003923 in words is "one million, three thousand, nine hundred twenty-three".