705230557 has 2 divisors, whose sum is σ = 705230558. Its totient is φ = 705230556.

The previous prime is 705230527. The next prime is 705230569. The reversal of 705230557 is 755032507.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 439573156 + 265657401 = 20966^2 + 16299^2 .

It is a cyclic number.

It is not a de Polignac number, because 705230557 - 2¹⁵ = 705197789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (705230527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 352615278 + 352615279.

It is an arithmetic number, because the mean of its divisors is an integer number (352615279).

Almost surely, 2^705230557 is an apocalyptic number.

It is an amenable number.

705230557 is a deficient number, since it is larger than the sum of its proper divisors (1).

705230557 is an equidigital number, since it uses as much as digits as its factorization.

705230557 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36750, while the sum is 34.

The square root of 705230557 is about 26556.1773792841. The cubic root of 705230557 is about 890.1100554051.

The spelling of 705230557 in words is "seven hundred five million, two hundred thirty thousand, five hundred fifty-seven".