659743 has 6 divisors (see below), whose sum is σ = 756456. Its totient is φ = 563652.

The previous prime is 659741. The next prime is 659759. The reversal of 659743 is 347956.

It is not a de Polignac number, because 659743 - 2¹ = 659741 is a prime.

It is a Duffinian number.

659743 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 659699 and 659708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (659741) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1996 + ... + 2302.

It is an arithmetic number, because the mean of its divisors is an integer number (126076).

2⁶⁵⁹⁷⁴³ is an apocalyptic number.

659743 is a deficient number, since it is larger than the sum of its proper divisors (96713).

659743 is an frugal number, since it uses more digits than its factorization.

659743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 621 (or 314 counting only the distinct ones).

The product of its digits is 22680, while the sum is 34.

The square root of 659743 is about 812.2456524968. The cubic root of 659743 is about 87.0545744696.

The spelling of 659743 in words is "six hundred fifty-nine thousand, seven hundred forty-three".