705740173 has 2 divisors, whose sum is σ = 705740174. Its totient is φ = 705740172.

The previous prime is 705740149. The next prime is 705740239. The reversal of 705740173 is 371047507.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 602555209 + 103184964 = 24547^2 + 10158^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-705740173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (703740173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 352870086 + 352870087.

It is an arithmetic number, because the mean of its divisors is an integer number (352870087).

Almost surely, 2^705740173 is an apocalyptic number.

It is an amenable number.

705740173 is a deficient number, since it is larger than the sum of its proper divisors (1).

705740173 is an equidigital number, since it uses as much as digits as its factorization.

705740173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20580, while the sum is 34.

The square root of 705740173 is about 26565.7707021648. The cubic root of 705740173 is about 890.3244085228.

The spelling of 705740173 in words is "seven hundred five million, seven hundred forty thousand, one hundred seventy-three".