1723911349 has 2 divisors, whose sum is σ = 1723911350. Its totient is φ = 1723911348.

The previous prime is 1723911307. The next prime is 1723911373. The reversal of 1723911349 is 9431193271.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1504664100 + 219247249 = 38790^2 + 14807^2 .

It is a cyclic number.

It is not a de Polignac number, because 1723911349 - 2¹¹ = 1723909301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1723911149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 861955674 + 861955675.

It is an arithmetic number, because the mean of its divisors is an integer number (861955675).

Almost surely, 2^1723911349 is an apocalyptic number.

It is an amenable number.

1723911349 is a deficient number, since it is larger than the sum of its proper divisors (1).

1723911349 is an equidigital number, since it uses as much as digits as its factorization.

1723911349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40824, while the sum is 40.

The square root of 1723911349 is about 41520.0114282258. The cubic root of 1723911349 is about 1199.0528055582.

The spelling of 1723911349 in words is "one billion, seven hundred twenty-three million, nine hundred eleven thousand, three hundred forty-nine".