705438885 has 24 divisors (see below), whose sum is σ = 1199009376. Its totient is φ = 354100480.

The previous prime is 705438871. The next prime is 705438887. The reversal of 705438885 is 588834507.

It is not a de Polignac number, because 705438885 - 2¹⁸ = 705176741 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (705438887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 77031 + ... + 85700.

It is an arithmetic number, because the mean of its divisors is an integer number (49958724).

Almost surely, 2^705438885 is an apocalyptic number.

It is an amenable number.

705438885 is a deficient number, since it is larger than the sum of its proper divisors (493570491).

705438885 is a wasteful number, since it uses less digits than its factorization.

705438885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162773 (or 162756 counting only the distinct ones).

The product of its (nonzero) digits is 1075200, while the sum is 48.

The square root of 705438885 is about 26560.0994915305. The cubic root of 705438885 is about 890.1976941635.

The spelling of 705438885 in words is "seven hundred five million, four hundred thirty-eight thousand, eight hundred eighty-five".