423803 has 2 divisors, whose sum is σ = 423804. Its totient is φ = 423802.

The previous prime is 423791. The next prime is 423823. The reversal of 423803 is 308324.

It is an a-pointer prime, because the next prime (423823) can be obtained adding 423803 to its sum of digits (20).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 423803 - 2⁸ = 423547 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a plaindrome in base 16.

It is not a weakly prime, because it can be changed into another prime (423823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211901 + 211902.

It is an arithmetic number, because the mean of its divisors is an integer number (211902).

2⁴²³⁸⁰³ is an apocalyptic number.

423803 is a deficient number, since it is larger than the sum of its proper divisors (1).

423803 is an equidigital number, since it uses as much as digits as its factorization.

423803 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 423803 is about 651.0015360965. The cubic root of 423803 is about 75.1140782459.

The spelling of 423803 in words is "four hundred twenty-three thousand, eight hundred three".