903923 has 4 divisors (see below), whose sum is σ = 943248. Its totient is φ = 864600.

The previous prime is 903919. The next prime is 903949. The reversal of 903923 is 329309.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 903923 - 2² = 903919 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 903892 and 903901.

It is not an unprimeable number, because it can be changed into a prime (903913) 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 3 ways as a sum of consecutive naturals, for example, 19628 + ... + 19673.

It is an arithmetic number, because the mean of its divisors is an integer number (235812).

2⁹⁰³⁹²³ is an apocalyptic number.

903923 is a deficient number, since it is larger than the sum of its proper divisors (39325).

903923 is a wasteful number, since it uses less digits than its factorization.

903923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39324.

The product of its (nonzero) digits is 1458, while the sum is 26.

The square root of 903923 is about 950.7486523787. The cubic root of 903923 is about 96.6890171598.

The spelling of 903923 in words is "nine hundred three thousand, nine hundred twenty-three".