1004023 has 4 divisors (see below), whose sum is σ = 1006168. Its totient is φ = 1001880.

The previous prime is 1003963. The next prime is 1004027. The reversal of 1004023 is 3204001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3204001 = 1619 ⋅1979.

It is a cyclic number.

It is not a de Polignac number, because 1004023 - 2¹⁷ = 872951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1004027) 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, 36 + ... + 1417.

It is an arithmetic number, because the mean of its divisors is an integer number (251542).

2^1004023 is an apocalyptic number.

1004023 is a deficient number, since it is larger than the sum of its proper divisors (2145).

1004023 is an equidigital number, since it uses as much as digits as its factorization.

1004023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2144.

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 1004023 is about 1002.0094809931. The cubic root of 1004023 is about 100.1339205727.

Adding to 1004023 its reverse (3204001), we get a palindrome (4208024).

The spelling of 1004023 in words is "one million, four thousand, twenty-three".