705305 has 4 divisors (see below), whose sum is σ = 846372. Its totient is φ = 564240.

The previous prime is 705293. The next prime is 705307. The reversal of 705305 is 503507.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 503507 = 163 ⋅3089.

It can be written as a sum of positive squares in 2 ways, for example, as 446224 + 259081 = 668^2 + 509^2 .

It is not a de Polignac number, because 705305 - 2¹⁰ = 704281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (705307) 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, 70526 + ... + 70535.

It is an arithmetic number, because the mean of its divisors is an integer number (211593).

2⁷⁰⁵³⁰⁵ is an apocalyptic number.

It is an amenable number.

705305 is a deficient number, since it is larger than the sum of its proper divisors (141067).

705305 is a wasteful number, since it uses less digits than its factorization.

705305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141066.

The product of its (nonzero) digits is 525, while the sum is 20.

The square root of 705305 is about 839.8243864047. The cubic root of 705305 is about 89.0141373830.

The spelling of 705305 in words is "seven hundred five thousand, three hundred five".