705543 has 4 divisors (see below), whose sum is σ = 940728. Its totient is φ = 470360.

The previous prime is 705533. The next prime is 705559. The reversal of 705543 is 345507.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 705543 - 2⁹ = 705031 is a prime.

It is a D-number.

705543 is a lucky number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 705543.

It is not an unprimeable number, because it can be changed into a prime (705533) 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, 117588 + ... + 117593.

It is an arithmetic number, because the mean of its divisors is an integer number (235182).

2⁷⁰⁵⁵⁴³ is an apocalyptic number.

705543 is a deficient number, since it is larger than the sum of its proper divisors (235185).

705543 is a wasteful number, since it uses less digits than its factorization.

705543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235184.

The product of its (nonzero) digits is 2100, while the sum is 24.

The square root of 705543 is about 839.9660707433. The cubic root of 705543 is about 89.0241486463.

The spelling of 705543 in words is "seven hundred five thousand, five hundred forty-three".