705851385 has 16 divisors (see below), whose sum is σ = 1136128896. Its totient is φ = 374198528.

The previous prime is 705851383. The next prime is 705851389. The reversal of 705851385 is 583158507.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 705851385 - 2¹ = 705851383 is a prime.

It is not an unprimeable number, because it can be changed into a prime (705851383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 138384 + ... + 143393.

It is an arithmetic number, because the mean of its divisors is an integer number (71008056).

Almost surely, 2^705851385 is an apocalyptic number.

It is an amenable number.

705851385 is a deficient number, since it is larger than the sum of its proper divisors (430277511).

705851385 is a wasteful number, since it uses less digits than its factorization.

705851385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281952.

The product of its (nonzero) digits is 168000, while the sum is 42.

The square root of 705851385 is about 26567.8637643300. The cubic root of 705851385 is about 890.3711724554.

The spelling of 705851385 in words is "seven hundred five million, eight hundred fifty-one thousand, three hundred eighty-five".