705742481 has 2 divisors, whose sum is σ = 705742482. Its totient is φ = 705742480.

The previous prime is 705742439. The next prime is 705742529. The reversal of 705742481 is 184247507.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 673921600 + 31820881 = 25960^2 + 5641^2 .

It is a cyclic number.

It is not a de Polignac number, because 705742481 - 2¹⁰ = 705741457 is a prime.

It is a super-2 number, since 2×705742481² = 996144898976070722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (705747481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 352871240 + 352871241.

It is an arithmetic number, because the mean of its divisors is an integer number (352871241).

Almost surely, 2^705742481 is an apocalyptic number.

It is an amenable number.

705742481 is a deficient number, since it is larger than the sum of its proper divisors (1).

705742481 is an equidigital number, since it uses as much as digits as its factorization.

705742481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 62720, while the sum is 38.

The square root of 705742481 is about 26565.8141414864. The cubic root of 705742481 is about 890.3253790719.

Adding to 705742481 its reverse (184247507), we get a palindrome (889989988).

The spelling of 705742481 in words is "seven hundred five million, seven hundred forty-two thousand, four hundred eighty-one".