19423343 has 2 divisors, whose sum is σ = 19423344. Its totient is φ = 19423342.

The previous prime is 19423321. The next prime is 19423357. The reversal of 19423343 is 34332491.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 19423343 - 2⁸ = 19423087 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19423303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9711671 + 9711672.

It is an arithmetic number, because the mean of its divisors is an integer number (9711672).

Almost surely, 2^19423343 is an apocalyptic number.

19423343 is a deficient number, since it is larger than the sum of its proper divisors (1).

19423343 is an equidigital number, since it uses as much as digits as its factorization.

19423343 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7776, while the sum is 29.

The square root of 19423343 is about 4407.1921900457. The cubic root of 19423343 is about 268.8074657717.

The spelling of 19423343 in words is "nineteen million, four hundred twenty-three thousand, three hundred forty-three".