904023 has 6 divisors (see below), whose sum is σ = 1305824. Its totient is φ = 602676.

The previous prime is 904019. The next prime is 904027. The reversal of 904023 is 320409.

It is an interprime number because it is at equal distance from previous prime (904019) and next prime (904027).

It is not a de Polignac number, because 904023 - 2² = 904019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 903987 and 904005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (904027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 50215 + ... + 50232.

2⁹⁰⁴⁰²³ is an apocalyptic number.

904023 is a deficient number, since it is larger than the sum of its proper divisors (401801).

904023 is a wasteful number, since it uses less digits than its factorization.

904023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100453 (or 100450 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 904023 is about 950.8012410593. The cubic root of 904023 is about 96.6925825613.

The spelling of 904023 in words is "nine hundred four thousand, twenty-three".