706661573 has 2 divisors, whose sum is σ = 706661574. Its totient is φ = 706661572.

The previous prime is 706661563. The next prime is 706661653. The reversal of 706661573 is 375166607.

706661573 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 593068609 + 113592964 = 24353^2 + 10658^2 .

It is a cyclic number.

It is not a de Polignac number, because 706661573 - 2¹² = 706657477 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 706661573.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (706661563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 353330786 + 353330787.

It is an arithmetic number, because the mean of its divisors is an integer number (353330787).

Almost surely, 2^706661573 is an apocalyptic number.

It is an amenable number.

706661573 is a deficient number, since it is larger than the sum of its proper divisors (1).

706661573 is an equidigital number, since it uses as much as digits as its factorization.

706661573 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 158760, while the sum is 41.

The square root of 706661573 is about 26583.1069102165. The cubic root of 706661573 is about 890.7117031635.

The spelling of 706661573 in words is "seven hundred six million, six hundred sixty-one thousand, five hundred seventy-three".