705388871 has 16 divisors (see below), whose sum is σ = 816959520. Its totient is φ = 601927680.

The previous prime is 705388807. The next prime is 705388883. The reversal of 705388871 is 178883507.

It is a cyclic number.

It is not a de Polignac number, because 705388871 - 2⁶ = 705388807 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (705388891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67895 + ... + 77591.

It is an arithmetic number, because the mean of its divisors is an integer number (51059970).

Almost surely, 2^705388871 is an apocalyptic number.

705388871 is a deficient number, since it is larger than the sum of its proper divisors (111570649).

705388871 is a wasteful number, since it uses less digits than its factorization.

705388871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10114.

The product of its (nonzero) digits is 376320, while the sum is 47.

The square root of 705388871 is about 26559.1579497544. The cubic root of 705388871 is about 890.1766560076.

The spelling of 705388871 in words is "seven hundred five million, three hundred eighty-eight thousand, eight hundred seventy-one".