705946321 has 2 divisors, whose sum is σ = 705946322. Its totient is φ = 705946320.

The previous prime is 705946279. The next prime is 705946327. The reversal of 705946321 is 123649507.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 490179600 + 215766721 = 22140^2 + 14689^2 .

It is an emirp because it is prime and its reverse (123649507) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 705946321 - 2⁹ = 705945809 is a prime.

It is not a weakly prime, because it can be changed into another prime (705946327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 352973160 + 352973161.

It is an arithmetic number, because the mean of its divisors is an integer number (352973161).

Almost surely, 2^705946321 is an apocalyptic number.

It is an amenable number.

705946321 is a deficient number, since it is larger than the sum of its proper divisors (1).

705946321 is an equidigital number, since it uses as much as digits as its factorization.

705946321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45360, while the sum is 37.

The square root of 705946321 is about 26569.6503740640. The cubic root of 705946321 is about 890.4110885482.

The spelling of 705946321 in words is "seven hundred five million, nine hundred forty-six thousand, three hundred twenty-one".