406743 has 4 divisors (see below), whose sum is σ = 542328. Its totient is φ = 271160.

The previous prime is 406739. The next prime is 406789. The reversal of 406743 is 347604.

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 406743 - 2² = 406739 is a prime.

It is a D-number.

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401743) 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, 67788 + ... + 67793.

It is an arithmetic number, because the mean of its divisors is an integer number (135582).

2⁴⁰⁶⁷⁴³ is an apocalyptic number.

406743 is a deficient number, since it is larger than the sum of its proper divisors (135585).

406743 is a wasteful number, since it uses less digits than its factorization.

406743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135584.

The product of its (nonzero) digits is 2016, while the sum is 24.

The square root of 406743 is about 637.7640629575. The cubic root of 406743 is about 74.0923487905.

The spelling of 406743 in words is "four hundred six thousand, seven hundred forty-three".