842743 has 8 divisors (see below), whose sum is σ = 959616. Its totient is φ = 732600.

The previous prime is 842729. The next prime is 842747. The reversal of 842743 is 347248.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-842743 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 (842747) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1413 + ... + 1918.

It is an arithmetic number, because the mean of its divisors is an integer number (119952).

2⁸⁴²⁷⁴³ is an apocalyptic number.

842743 is a deficient number, since it is larger than the sum of its proper divisors (116873).

842743 is a wasteful number, since it uses less digits than its factorization.

842743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3365.

The product of its digits is 5376, while the sum is 28.

The square root of 842743 is about 918.0103485255. The cubic root of 842743 is about 94.4564714659.

The spelling of 842743 in words is "eight hundred forty-two thousand, seven hundred forty-three".