842984 has 8 divisors (see below), whose sum is σ = 1580610. Its totient is φ = 421488.

The previous prime is 842981. The next prime is 842987. The reversal of 842984 is 489248.

It is an interprime number because it is at equal distance from previous prime (842981) and next prime (842987).

It can be written as a sum of positive squares in only one way, i.e., 828100 + 14884 = 910^2 + 122^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 842984.

It is not an unprimeable number, because it can be changed into a prime (842981) 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 as a sum of consecutive naturals, namely, 52679 + ... + 52694.

2⁸⁴²⁹⁸⁴ is an apocalyptic number.

It is an amenable number.

842984 is a deficient number, since it is larger than the sum of its proper divisors (737626).

842984 is a wasteful number, since it uses less digits than its factorization.

842984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105379 (or 105375 counting only the distinct ones).

The product of its digits is 18432, while the sum is 35.

The square root of 842984 is about 918.1416012795. The cubic root of 842984 is about 94.4654745428.

The spelling of 842984 in words is "eight hundred forty-two thousand, nine hundred eighty-four".