705720885 has 16 divisors (see below), whose sum is σ = 1134005184. Its totient is φ = 374767232.

The previous prime is 705720853. The next prime is 705720893. The reversal of 705720885 is 588027507.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 705720885 - 2⁵ = 705720853 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97467 + ... + 104456.

It is an arithmetic number, because the mean of its divisors is an integer number (70875324).

Almost surely, 2^705720885 is an apocalyptic number.

It is an amenable number.

705720885 is a deficient number, since it is larger than the sum of its proper divisors (428284299).

705720885 is a wasteful number, since it uses less digits than its factorization.

705720885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202164.

The product of its (nonzero) digits is 156800, while the sum is 42.

The square root of 705720885 is about 26565.4076761491. The cubic root of 705720885 is about 890.3162975426.

The spelling of 705720885 in words is "seven hundred five million, seven hundred twenty thousand, eight hundred eighty-five".