1719796349 has 2 divisors, whose sum is σ = 1719796350. Its totient is φ = 1719796348.

The previous prime is 1719796333. The next prime is 1719796409. The reversal of 1719796349 is 9436979171.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1677312025 + 42484324 = 40955^2 + 6518^2 .

It is a cyclic number.

It is not a de Polignac number, because 1719796349 - 2⁴ = 1719796333 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1719796294 and 1719796303.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1719796649) 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, 859898174 + 859898175.

It is an arithmetic number, because the mean of its divisors is an integer number (859898175).

Almost surely, 2^1719796349 is an apocalyptic number.

It is an amenable number.

1719796349 is a deficient number, since it is larger than the sum of its proper divisors (1).

1719796349 is an equidigital number, since it uses as much as digits as its factorization.

1719796349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2571912, while the sum is 56.

The square root of 1719796349 is about 41470.4274031508. The cubic root of 1719796349 is about 1198.0979936155.

The spelling of 1719796349 in words is "one billion, seven hundred nineteen million, seven hundred ninety-six thousand, three hundred forty-nine".