705497693 has 2 divisors, whose sum is σ = 705497694. Its totient is φ = 705497692.

The previous prime is 705497657. The next prime is 705497713. The reversal of 705497693 is 396794507.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 636906169 + 68591524 = 25237^2 + 8282^2 .

It is an emirp because it is prime and its reverse (396794507) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 705497693 - 2⁶ = 705497629 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (705497293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 352748846 + 352748847.

It is an arithmetic number, because the mean of its divisors is an integer number (352748847).

Almost surely, 2^705497693 is an apocalyptic number.

It is an amenable number.

705497693 is a deficient number, since it is larger than the sum of its proper divisors (1).

705497693 is an equidigital number, since it uses as much as digits as its factorization.

705497693 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1428840, while the sum is 50.

The square root of 705497693 is about 26561.2065426253. The cubic root of 705497693 is about 890.2224302025. Note that the first 3 decimals are identical.

The spelling of 705497693 in words is "seven hundred five million, four hundred ninety-seven thousand, six hundred ninety-three".