16204423 has 2 divisors, whose sum is σ = 16204424. Its totient is φ = 16204422.

The previous prime is 16204411. The next prime is 16204429. The reversal of 16204423 is 32440261.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16204423 - 2⁹ = 16203911 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16204394 and 16204403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16204429) 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 as a sum of consecutive naturals, namely, 8102211 + 8102212.

It is an arithmetic number, because the mean of its divisors is an integer number (8102212).

Almost surely, 2^16204423 is an apocalyptic number.

16204423 is a deficient number, since it is larger than the sum of its proper divisors (1).

16204423 is an equidigital number, since it uses as much as digits as its factorization.

16204423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 16204423 is about 4025.4717735937. The cubic root of 16204423 is about 253.0528252894.

Adding to 16204423 its reverse (32440261), we get a palindrome (48644684).

The spelling of 16204423 in words is "sixteen million, two hundred four thousand, four hundred twenty-three".