3555447397 has 2 divisors, whose sum is σ = 3555447398. Its totient is φ = 3555447396.

The previous prime is 3555447373. The next prime is 3555447419. The reversal of 3555447397 is 7937445553.

3555447397 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3304985121 + 250462276 = 57489^2 + 15826^2 .

It is a cyclic number.

It is not a de Polignac number, because 3555447397 - 2¹¹ = 3555445349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3555447097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1777723698 + 1777723699.

It is an arithmetic number, because the mean of its divisors is an integer number (1777723699).

Almost surely, 2^3555447397 is an apocalyptic number.

It is an amenable number.

3555447397 is a deficient number, since it is larger than the sum of its proper divisors (1).

3555447397 is an equidigital number, since it uses as much as digits as its factorization.

3555447397 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7938000, while the sum is 52.

The square root of 3555447397 is about 59627.5724560375. The cubic root of 3555447397 is about 1526.2701802510.

The spelling of 3555447397 in words is "three billion, five hundred fifty-five million, four hundred forty-seven thousand, three hundred ninety-seven".