23403823 has 2 divisors, whose sum is σ = 23403824. Its totient is φ = 23403822.

The previous prime is 23403773. The next prime is 23403827. The reversal of 23403823 is 32830432.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23403823 - 2¹⁷ = 23272751 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23403827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11701911 + 11701912.

It is an arithmetic number, because the mean of its divisors is an integer number (11701912).

Almost surely, 2^23403823 is an apocalyptic number.

23403823 is a deficient number, since it is larger than the sum of its proper divisors (1).

23403823 is an equidigital number, since it uses as much as digits as its factorization.

23403823 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 23403823 is about 4837.7497868327. The cubic root of 23403823 is about 286.0414263431.

The spelling of 23403823 in words is "twenty-three million, four hundred three thousand, eight hundred twenty-three".