3448171721 has 2 divisors, whose sum is σ = 3448171722. Its totient is φ = 3448171720.

The previous prime is 3448171681. The next prime is 3448171739. The reversal of 3448171721 is 1271718443.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2794602496 + 653569225 = 52864^2 + 25565^2 .

It is a cyclic number.

It is not a de Polignac number, because 3448171721 - 2¹⁰ = 3448170697 is a prime.

It is not a weakly prime, because it can be changed into another prime (3448171781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1724085860 + 1724085861.

It is an arithmetic number, because the mean of its divisors is an integer number (1724085861).

Almost surely, 2^3448171721 is an apocalyptic number.

It is an amenable number.

3448171721 is a deficient number, since it is larger than the sum of its proper divisors (1).

3448171721 is an equidigital number, since it uses as much as digits as its factorization.

3448171721 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 37632, while the sum is 38.

The square root of 3448171721 is about 58721.1352155253. The cubic root of 3448171721 is about 1510.7628443791.

The spelling of 3448171721 in words is "three billion, four hundred forty-eight million, one hundred seventy-one thousand, seven hundred twenty-one".