842534 has 16 divisors (see below), whose sum is σ = 1575936. Its totient is φ = 328200.

The previous prime is 842531. The next prime is 842551. The reversal of 842534 is 435248.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 842534.

It is not an unprimeable number, because it can be changed into a prime (842531) 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 7 ways as a sum of consecutive naturals, for example, 2582 + ... + 2889.

It is an arithmetic number, because the mean of its divisors is an integer number (98496).

2⁸⁴²⁵³⁴ is an apocalyptic number.

842534 is a deficient number, since it is larger than the sum of its proper divisors (733402).

842534 is a wasteful number, since it uses less digits than its factorization.

842534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5491.

The product of its digits is 3840, while the sum is 26.

The square root of 842534 is about 917.8965083276. The cubic root of 842534 is about 94.4486624286.

The spelling of 842534 in words is "eight hundred forty-two thousand, five hundred thirty-four".