705320347 has 2 divisors, whose sum is σ = 705320348. Its totient is φ = 705320346.

The previous prime is 705320311. The next prime is 705320359. The reversal of 705320347 is 743023507.

It is a strong prime.

It is an emirp because it is prime and its reverse (743023507) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 705320347 - 2²⁷ = 571102619 is a prime.

It is not a weakly prime, because it can be changed into another prime (705320377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 352660173 + 352660174.

It is an arithmetic number, because the mean of its divisors is an integer number (352660174).

Almost surely, 2^705320347 is an apocalyptic number.

705320347 is a deficient number, since it is larger than the sum of its proper divisors (1).

705320347 is an equidigital number, since it uses as much as digits as its factorization.

705320347 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17640, while the sum is 31.

The square root of 705320347 is about 26557.8678925851. The cubic root of 705320347 is about 890.1478300919.

The spelling of 705320347 in words is "seven hundred five million, three hundred twenty thousand, three hundred forty-seven".