705743 has 4 divisors (see below), whose sum is σ = 709080. Its totient is φ = 702408.

The previous prime is 705737. The next prime is 705751. The reversal of 705743 is 347507.

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 705743 - 2¹⁰ = 704719 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 (705713) 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 3 ways as a sum of consecutive naturals, for example, 1328 + ... + 1781.

It is an arithmetic number, because the mean of its divisors is an integer number (177270).

2⁷⁰⁵⁷⁴³ is an apocalyptic number.

705743 is a deficient number, since it is larger than the sum of its proper divisors (3337).

705743 is a wasteful number, since it uses less digits than its factorization.

705743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3336.

The product of its (nonzero) digits is 2940, while the sum is 26.

The square root of 705743 is about 840.0851147354. The cubic root of 705743 is about 89.0325597319.

The spelling of 705743 in words is "seven hundred five thousand, seven hundred forty-three".