705847469 has 2 divisors, whose sum is σ = 705847470. Its totient is φ = 705847468.

The previous prime is 705847459. The next prime is 705847507. The reversal of 705847469 is 964748507.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 632522500 + 73324969 = 25150^2 + 8563^2 .

It is an emirp because it is prime and its reverse (964748507) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 705847469 - 2⁴ = 705847453 is a prime.

It is a super-2 number, since 2×705847469² = 996441298987411922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (705847459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 352923734 + 352923735.

It is an arithmetic number, because the mean of its divisors is an integer number (352923735).

Almost surely, 2^705847469 is an apocalyptic number.

It is an amenable number.

705847469 is a deficient number, since it is larger than the sum of its proper divisors (1).

705847469 is an equidigital number, since it uses as much as digits as its factorization.

705847469 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1693440, while the sum is 50.

The square root of 705847469 is about 26567.7900661685. The cubic root of 705847469 is about 890.3695258859.

The spelling of 705847469 in words is "seven hundred five million, eight hundred forty-seven thousand, four hundred sixty-nine".