842989539 has 16 divisors (see below), whose sum is σ = 1308794112. Its totient is φ = 472618848.

The previous prime is 842989529. The next prime is 842989559. The reversal of 842989539 is 935989248.

It is not a de Polignac number, because 842989539 - 2⁵ = 842989507 is a prime.

It is not an unprimeable number, because it can be changed into a prime (842989529) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 377589 + ... + 379814.

It is an arithmetic number, because the mean of its divisors is an integer number (81799632).

Almost surely, 2^842989539 is an apocalyptic number.

842989539 is a deficient number, since it is larger than the sum of its proper divisors (465804573).

842989539 is a wasteful number, since it uses less digits than its factorization.

842989539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 757466.

The product of its digits is 5598720, while the sum is 57.

The square root of 842989539 is about 29034.2821333678. The cubic root of 842989539 is about 944.6568144395.

The spelling of 842989539 in words is "eight hundred forty-two million, nine hundred eighty-nine thousand, five hundred thirty-nine".