900423 has 8 divisors (see below), whose sum is σ = 1334000. Its totient is φ = 600264.

The previous prime is 900409. The next prime is 900443. The reversal of 900423 is 324009.

It is not a de Polignac number, because 900423 - 2¹² = 896327 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 900396 and 900405.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 900423.

It is not an unprimeable number, because it can be changed into a prime (900443) 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 7 ways as a sum of consecutive naturals, for example, 16648 + ... + 16701.

It is an arithmetic number, because the mean of its divisors is an integer number (166750).

2⁹⁰⁰⁴²³ is an apocalyptic number.

900423 is a deficient number, since it is larger than the sum of its proper divisors (433577).

900423 is a wasteful number, since it uses less digits than its factorization.

900423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33358 (or 33352 counting only the distinct ones).

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

The square root of 900423 is about 948.9062124362. The cubic root of 900423 is about 96.5640620918.

The spelling of 900423 in words is "nine hundred thousand, four hundred twenty-three".