842741 has 8 divisors (see below), whose sum is σ = 903960. Its totient is φ = 782848.

The previous prime is 842729. The next prime is 842747. The reversal of 842741 is 147248.

It can be written as a sum of positive squares in 4 ways, for example, as 14641 + 828100 = 121^2 + 910^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-842741 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 842741.

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, 1235 + ... + 1791.

It is an arithmetic number, because the mean of its divisors is an integer number (112995).

2⁸⁴²⁷⁴¹ is an apocalyptic number.

It is an amenable number.

842741 is a deficient number, since it is larger than the sum of its proper divisors (61219).

842741 is a wasteful number, since it uses less digits than its factorization.

842741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 663.

The product of its digits is 1792, while the sum is 26.

The square root of 842741 is about 918.0092592126. The cubic root of 842741 is about 94.4563967444.

Adding to 842741 its reverse (147248), we get a palindrome (989989).

The spelling of 842741 in words is "eight hundred forty-two thousand, seven hundred forty-one".