823003823 has 2 divisors, whose sum is σ = 823003824. Its totient is φ = 823003822.

The previous prime is 823003817. The next prime is 823003859. The reversal of 823003823 is 328300328.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 823003823 - 2¹⁸ = 822741679 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (823003123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 411501911 + 411501912.

It is an arithmetic number, because the mean of its divisors is an integer number (411501912).

Almost surely, 2^823003823 is an apocalyptic number.

823003823 is a deficient number, since it is larger than the sum of its proper divisors (1).

823003823 is an equidigital number, since it uses as much as digits as its factorization.

823003823 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 823003823 is about 28688.0432061861. The cubic root of 823003823 is about 937.1316755904.

The spelling of 823003823 in words is "eight hundred twenty-three million, three thousand, eight hundred twenty-three".