16424423 has 2 divisors, whose sum is σ = 16424424. Its totient is φ = 16424422.

The previous prime is 16424407. The next prime is 16424449. The reversal of 16424423 is 32442461.

It is an a-pointer prime, because the next prime (16424449) can be obtained adding 16424423 to its sum of digits (26).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16424423 - 2⁴ = 16424407 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16424392 and 16424401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16424453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8212211 + 8212212.

It is an arithmetic number, because the mean of its divisors is an integer number (8212212).

Almost surely, 2^16424423 is an apocalyptic number.

16424423 is a deficient number, since it is larger than the sum of its proper divisors (1).

16424423 is an equidigital number, since it uses as much as digits as its factorization.

16424423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4608, while the sum is 26.

The square root of 16424423 is about 4052.7056394463. The cubic root of 16424423 is about 254.1928753887.

Adding to 16424423 its reverse (32442461), we get a palindrome (48866884).

The spelling of 16424423 in words is "sixteen million, four hundred twenty-four thousand, four hundred twenty-three".