823003 has 2 divisors, whose sum is σ = 823004. Its totient is φ = 823002.

The previous prime is 823001. The next prime is 823013. The reversal of 823003 is 300328.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 823003 - 2¹ = 823001 is a prime.

Together with 823001, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (823001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 411501 + 411502.

It is an arithmetic number, because the mean of its divisors is an integer number (411502).

2⁸²³⁰⁰³ is an apocalyptic number.

823003 is a deficient number, since it is larger than the sum of its proper divisors (1).

823003 is an equidigital number, since it uses as much as digits as its factorization.

823003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 823003 is about 907.1951278529. The cubic root of 823003 is about 93.7131363215.

The spelling of 823003 in words is "eight hundred twenty-three thousand, three".