705423617 has 2 divisors, whose sum is σ = 705423618. Its totient is φ = 705423616.

The previous prime is 705423613. The next prime is 705423661. The reversal of 705423617 is 716324507.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 678289936 + 27133681 = 26044^2 + 5209^2 .

It is a cyclic number.

It is not a de Polignac number, because 705423617 - 2² = 705423613 is a prime.

It is not a weakly prime, because it can be changed into another prime (705423613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 352711808 + 352711809.

It is an arithmetic number, because the mean of its divisors is an integer number (352711809).

Almost surely, 2^705423617 is an apocalyptic number.

It is an amenable number.

705423617 is a deficient number, since it is larger than the sum of its proper divisors (1).

705423617 is an equidigital number, since it uses as much as digits as its factorization.

705423617 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 35280, while the sum is 35.

The square root of 705423617 is about 26559.8120663532. The cubic root of 705423617 is about 890.1912718559.

The spelling of 705423617 in words is "seven hundred five million, four hundred twenty-three thousand, six hundred seventeen".