16723423 has 2 divisors, whose sum is σ = 16723424. Its totient is φ = 16723422.

The previous prime is 16723409. The next prime is 16723463. The reversal of 16723423 is 32432761.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16723423 - 2⁹ = 16722911 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16723391 and 16723400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16723463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8361711 + 8361712.

It is an arithmetic number, because the mean of its divisors is an integer number (8361712).

Almost surely, 2^16723423 is an apocalyptic number.

16723423 is a deficient number, since it is larger than the sum of its proper divisors (1).

16723423 is an equidigital number, since it uses as much as digits as its factorization.

16723423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6048, while the sum is 28.

The square root of 16723423 is about 4089.4281996387. The cubic root of 16723423 is about 255.7261017099.

The spelling of 16723423 in words is "sixteen million, seven hundred twenty-three thousand, four hundred twenty-three".