19483439 has 2 divisors, whose sum is σ = 19483440. Its totient is φ = 19483438.

The previous prime is 19483421. The next prime is 19483463. The reversal of 19483439 is 93438491.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19483439 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 19483396 and 19483405.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19453439) 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, 9741719 + 9741720.

It is an arithmetic number, because the mean of its divisors is an integer number (9741720).

Almost surely, 2^19483439 is an apocalyptic number.

19483439 is a deficient number, since it is larger than the sum of its proper divisors (1).

19483439 is an equidigital number, since it uses as much as digits as its factorization.

19483439 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 93312, while the sum is 41.

The square root of 19483439 is about 4414.0048708627. The cubic root of 19483439 is about 269.0844112589.

The spelling of 19483439 in words is "nineteen million, four hundred eighty-three thousand, four hundred thirty-nine".