705868049 has 2 divisors, whose sum is σ = 705868050. Its totient is φ = 705868048.

The previous prime is 705868003. The next prime is 705868057. The reversal of 705868049 is 940868507.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 700555024 + 5313025 = 26468^2 + 2305^2 .

It is a cyclic number.

It is not a de Polignac number, because 705868049 - 2⁸ = 705867793 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 705867994 and 705868012.

It is not a weakly prime, because it can be changed into another prime (705868099) 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, 352934024 + 352934025.

It is an arithmetic number, because the mean of its divisors is an integer number (352934025).

Almost surely, 2^705868049 is an apocalyptic number.

It is an amenable number.

705868049 is a deficient number, since it is larger than the sum of its proper divisors (1).

705868049 is an equidigital number, since it uses as much as digits as its factorization.

705868049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 483840, while the sum is 47.

The square root of 705868049 is about 26568.1773744455. The cubic root of 705868049 is about 890.3781791373.

The spelling of 705868049 in words is "seven hundred five million, eight hundred sixty-eight thousand, forty-nine".