705481577 has 2 divisors, whose sum is σ = 705481578. Its totient is φ = 705481576.

The previous prime is 705481559. The next prime is 705481583. The reversal of 705481577 is 775184507.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 617572201 + 87909376 = 24851^2 + 9376^2 .

It is an emirp because it is prime and its reverse (775184507) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 705481577 - 2¹² = 705477481 is a prime.

It is not a weakly prime, because it can be changed into another prime (705481597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 352740788 + 352740789.

It is an arithmetic number, because the mean of its divisors is an integer number (352740789).

Almost surely, 2^705481577 is an apocalyptic number.

It is an amenable number.

705481577 is a deficient number, since it is larger than the sum of its proper divisors (1).

705481577 is an equidigital number, since it uses as much as digits as its factorization.

705481577 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 274400, while the sum is 44.

The square root of 705481577 is about 26560.9031661199. The cubic root of 705481577 is about 890.2156515676.

The spelling of 705481577 in words is "seven hundred five million, four hundred eighty-one thousand, five hundred seventy-seven".