705967817 has 2 divisors, whose sum is σ = 705967818. Its totient is φ = 705967816.

The previous prime is 705967813. The next prime is 705967831. The reversal of 705967817 is 718769507.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 631818496 + 74149321 = 25136^2 + 8611^2 .

It is a cyclic number.

It is not a de Polignac number, because 705967817 - 2² = 705967813 is a prime.

It is not a weakly prime, because it can be changed into another prime (705967813) 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, 352983908 + 352983909.

It is an arithmetic number, because the mean of its divisors is an integer number (352983909).

Almost surely, 2^705967817 is an apocalyptic number.

It is an amenable number.

705967817 is a deficient number, since it is larger than the sum of its proper divisors (1).

705967817 is an equidigital number, since it uses as much as digits as its factorization.

705967817 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 740880, while the sum is 50.

The square root of 705967817 is about 26570.0548926795. The cubic root of 705967817 is about 890.4201261015.

The spelling of 705967817 in words is "seven hundred five million, nine hundred sixty-seven thousand, eight hundred seventeen".