705911 has 4 divisors (see below), whose sum is σ = 712272. Its totient is φ = 699552.

The previous prime is 705899. The next prime is 705919. The reversal of 705911 is 119507.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 119507 = 127 ⋅941.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-705911 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 (705919) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3011 + ... + 3236.

It is an arithmetic number, because the mean of its divisors is an integer number (178068).

2⁷⁰⁵⁹¹¹ is an apocalyptic number.

705911 is a deficient number, since it is larger than the sum of its proper divisors (6361).

705911 is a wasteful number, since it uses less digits than its factorization.

705911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6360.

The product of its (nonzero) digits is 315, while the sum is 23.

The square root of 705911 is about 840.1850986539. The cubic root of 705911 is about 89.0396238158.

The spelling of 705911 in words is "seven hundred five thousand, nine hundred eleven".